🔖 Release version 0.74.0

Co-authored-by: github-actions <github-actions@github.com>

.github/workflows/build-docs.yml

@@ -1,6 +1,8 @@
 name: Build Docs
 on:
   push:
+    branches:
+      - master
   pull_request:
     types: [opened, synchronize]
 jobs:
@@ -20,7 +22,7 @@ jobs:
         id: cache
         with:
           path: ${{ env.pythonLocation }}
-          key: ${{ runner.os }}-python-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml') }}-docs
+          key: ${{ runner.os }}-python-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml') }}-docs-v2
       - name: Install Flit
         if: steps.cache.outputs.cache-hit != 'true'
         run: python3.7 -m pip install flit

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
       fail-fast: false
 
     steps:

README.md

@@ -49,6 +49,8 @@ The key features are:
 
 <a href="https://bit.ly/2QSouzH" target="_blank" title="Jina: build neural search-as-a-service for any kind of data in just minutes."><img src="https://fastapi.tiangolo.com/img/sponsors/jina.svg"></a>
 <a href="https://cryptapi.io/" target="_blank" title="CryptAPI: Your easy to use, secure and privacy oriented payment gateway."><img src="https://fastapi.tiangolo.com/img/sponsors/cryptapi.svg"></a>
+<a href="https://www.dropbase.io/careers" target="_blank" title="Dropbase - seamlessly collect, clean, and centralize data."><img src="https://fastapi.tiangolo.com/img/sponsors/dropbase.svg"></a>
+<a href="https://striveworks.us/careers?utm_source=fastapi&utm_medium=sponsor_banner&utm_campaign=feb_march#openings" target="_blank" title="https://striveworks.us/careers"><img src="https://fastapi.tiangolo.com/img/sponsors/striveworks.png"></a>
 <a href="https://www.deta.sh/?ref=fastapi" target="_blank" title="The launchpad for all your (team's) ideas"><img src="https://fastapi.tiangolo.com/img/sponsors/deta.svg"></a>
 <a href="https://www.investsuite.com/jobs" target="_blank" title="Wealthtech jobs with FastAPI"><img src="https://fastapi.tiangolo.com/img/sponsors/investsuite.svg"></a>
 <a href="https://www.vim.so/?utm_source=FastAPI" target="_blank" title="We help you master vim with interactive exercises"><img src="https://fastapi.tiangolo.com/img/sponsors/vimso.png"></a>

docs/az/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/de/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -71,8 +68,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/en/data/people.yml

@@ -1,20 +1,20 @@
 maintainers:
 - login: tiangolo
-  answers: 1230
-  prs: 269
+  answers: 1237
+  prs: 280
   avatarUrl: https://avatars.githubusercontent.com/u/1326112?u=5cad72c846b7aba2e960546af490edc7375dafc4&v=4
   url: https://github.com/tiangolo
 experts:
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-  count: 315
-  avatarUrl: https://avatars.githubusercontent.com/u/7353520?u=cf8455cb899806b774a3a71073f88583adec99f6&v=4
+  count: 319
+  avatarUrl: https://avatars.githubusercontent.com/u/7353520?u=3682d9b9b93bef272f379ab623dc031c8d71432e&v=4
   url: https://github.com/Kludex
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   url: https://github.com/dmontagu
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   url: https://github.com/ycd
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   url: https://github.com/raphaelauv
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-  url: https://github.com/adriangb
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+  url: https://github.com/chbndrhnns
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-  count: 24
-  avatarUrl: https://avatars.githubusercontent.com/u/7534547?v=4
-  url: https://github.com/chbndrhnns
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+  avatarUrl: https://avatars.githubusercontent.com/u/41326348?u=ba2fda6b30110411ecbf406d187907e2b420ac19&v=4
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 last_month_active:
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-  url: https://github.com/raphaelauv
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 top_contributors:
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@@ -273,12 +301,12 @@ top_contributors:
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   count: 12
   avatarUrl: https://avatars.githubusercontent.com/u/6478810?u=af15d724875cec682ed8088a86d36b2798f981c0&v=4
@@ -376,10 +412,6 @@ top_reviewers:
   count: 10
   avatarUrl: https://avatars.githubusercontent.com/u/7887703?v=4
   url: https://github.com/maoyibo
-- login: yezz123
-  count: 9
-  avatarUrl: https://avatars.githubusercontent.com/u/52716203?u=636b4f79645176df4527dd45c12d5dbb5a4193cf&v=4
-  url: https://github.com/yezz123
 - login: graingert
   count: 9
   avatarUrl: https://avatars.githubusercontent.com/u/413772?v=4
@@ -392,6 +424,10 @@ top_reviewers:
   count: 9
   avatarUrl: https://avatars.githubusercontent.com/u/49435654?v=4
   url: https://github.com/kty4119
+- login: zy7y
+  count: 9
+  avatarUrl: https://avatars.githubusercontent.com/u/67154681?u=5d634834cc514028ea3f9115f7030b99a1f4d5a4&v=4
+  url: https://github.com/zy7y
 - login: bezaca
   count: 9
   avatarUrl: https://avatars.githubusercontent.com/u/69092910?u=4ac58eab99bd37d663f3d23551df96d4fbdbf760&v=4
@@ -420,6 +456,10 @@ top_reviewers:
   count: 7
   avatarUrl: https://avatars.githubusercontent.com/u/10202690?u=e6f86f5c0c3026a15d6b51792fa3e532b12f1371&v=4
   url: https://github.com/raphaelauv
+- login: BilalAlpaslan
+  count: 7
+  avatarUrl: https://avatars.githubusercontent.com/u/47563997?u=63ed66e304fe8d765762c70587d61d9196e5c82d&v=4
+  url: https://github.com/BilalAlpaslan
 - login: NastasiaSaby
   count: 7
   avatarUrl: https://avatars.githubusercontent.com/u/8245071?u=b3afd005f9e4bf080c219ef61a592b3a8004b764&v=4
@@ -432,43 +472,31 @@ top_reviewers:
   count: 7
   avatarUrl: https://avatars.githubusercontent.com/u/34248814?v=4
   url: https://github.com/krocdort
+- login: dimaqq
+  count: 7
+  avatarUrl: https://avatars.githubusercontent.com/u/662249?v=4
+  url: https://github.com/dimaqq
 - login: jovicon
   count: 6
   avatarUrl: https://avatars.githubusercontent.com/u/21287303?u=b049eac3e51a4c0473c2efe66b4d28a7d8f2b572&v=4
   url: https://github.com/jovicon
-- login: BilalAlpaslan
+- login: NinaHwang
   count: 6
-  avatarUrl: https://avatars.githubusercontent.com/u/47563997?u=63ed66e304fe8d765762c70587d61d9196e5c82d&v=4
-  url: https://github.com/BilalAlpaslan
+  avatarUrl: https://avatars.githubusercontent.com/u/79563565?u=1741703bd6c8f491503354b363a86e879b4c1cab&v=4
+  url: https://github.com/NinaHwang
 - login: diogoduartec
   count: 5
   avatarUrl: https://avatars.githubusercontent.com/u/31852339?u=b50fc11c531e9b77922e19edfc9e7233d4d7b92e&v=4
   url: https://github.com/diogoduartec
-- login: nimctl
+- login: n25a
   count: 5
-  avatarUrl: https://avatars.githubusercontent.com/u/49960770?u=e39b11d47188744ee07b2a1c7ce1a1bdf3c80760&v=4
-  url: https://github.com/nimctl
-- login: juntatalor
+  avatarUrl: https://avatars.githubusercontent.com/u/49960770?u=eb3c95338741c78fff7d9d5d7ace9617e53eee4a&v=4
+  url: https://github.com/n25a
+- login: izaguerreiro
   count: 5
-  avatarUrl: https://avatars.githubusercontent.com/u/8134632?v=4
-  url: https://github.com/juntatalor
-- login: SnkSynthesis
+  avatarUrl: https://avatars.githubusercontent.com/u/2241504?v=4
+  url: https://github.com/izaguerreiro
+- login: israteneda
   count: 5
-  avatarUrl: https://avatars.githubusercontent.com/u/63564282?u=0078826509dbecb2fdb543f4e881c9cd06157893&v=4
-  url: https://github.com/SnkSynthesis
-- login: anthonycepeda
-  count: 5
-  avatarUrl: https://avatars.githubusercontent.com/u/72019805?u=892f700c79f9732211bd5221bf16eec32356a732&v=4
-  url: https://github.com/anthonycepeda
-- login: oandersonmagalhaes
-  count: 5
-  avatarUrl: https://avatars.githubusercontent.com/u/83456692?v=4
-  url: https://github.com/oandersonmagalhaes
-- login: euri10
-  count: 4
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-- login: rkbeatss
-  count: 4
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-  url: https://github.com/rkbeatss
+  avatarUrl: https://avatars.githubusercontent.com/u/20668624?u=d7b2961d330aca65fbce5bdb26a0800a3d23ed2d&v=4
+  url: https://github.com/israteneda

docs/en/data/sponsors.yml

@@ -5,6 +5,12 @@ gold:
   - url: https://cryptapi.io/
     title: "CryptAPI: Your easy to use, secure and privacy oriented payment gateway."
     img: https://fastapi.tiangolo.com/img/sponsors/cryptapi.svg
+  - url: https://www.dropbase.io/careers
+    title: Dropbase - seamlessly collect, clean, and centralize data.
+    img: https://fastapi.tiangolo.com/img/sponsors/dropbase.svg
+  - url: https://striveworks.us/careers?utm_source=fastapi&utm_medium=sponsor_banner&utm_campaign=feb_march#openings
+    title: https://striveworks.us/careers
+    img: https://fastapi.tiangolo.com/img/sponsors/striveworks.png
 silver:
   - url: https://www.deta.sh/?ref=fastapi
     title: The launchpad for all your (team's) ideas

docs/en/data/sponsors_badge.yml

@@ -7,3 +7,5 @@ logins:
   - koaning
   - deepset-ai
   - cryptapi
+  - DropbaseHQ
+  - Striveworks

docs/en/docs/advanced/extending-openapi.md

@@ -233,3 +233,82 @@ Now, to be able to test that everything works, create a *path operation*:
 Now, you should be able to disconnect your WiFi, go to your docs at <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>, and reload the page.
 
 And even without Internet, you would be able to see the docs for your API and interact with it.
+
+## Configuring Swagger UI
+
+You can configure some extra <a href="https://swagger.io/docs/open-source-tools/swagger-ui/usage/configuration" class="external-link" target="_blank">Swagger UI parameters</a>.
+
+To configure them, pass the `swagger_ui_parameters` argument when creating the `FastAPI()` app object or to the `get_swagger_ui_html()` function.
+
+`swagger_ui_parameters` receives a dictionary with the configurations passed to Swagger UI directly.
+
+FastAPI converts the configurations to **JSON** to make them compatible with JavaScript, as that's what Swagger UI needs.
+
+### Disable Syntax Highlighting
+
+For example, you could disable syntax highlighting in Swagger UI.
+
+Without changing the settings, syntax highlighting is enabled by default:
+
+<img src="/img/tutorial/extending-openapi/image02.png">
+
+But you can disable it by setting `syntaxHighlight` to `False`:
+
+```Python hl_lines="3"
+{!../../../docs_src/extending_openapi/tutorial003.py!}
+```
+
+...and then Swagger UI won't show the syntax highlighting anymore:
+
+<img src="/img/tutorial/extending-openapi/image03.png">
+
+### Change the Theme
+
+The same way you could set the syntax highlighting theme with the key `"syntaxHighlight.theme"` (notice that it has a dot in the middle):
+
+```Python hl_lines="3"
+{!../../../docs_src/extending_openapi/tutorial004.py!}
+```
+
+That configuration would change the syntax highlighting color theme:
+
+<img src="/img/tutorial/extending-openapi/image04.png">
+
+### Change Default Swagger UI Parameters
+
+FastAPI includes some default configuration parameters appropriate for most of the use cases.
+
+It includes these default configurations:
+
+```Python
+{!../../../fastapi/openapi/docs.py[ln:7-13]!}
+```
+
+You can override any of them by setting a different value in the argument `swagger_ui_parameters`.
+
+For example, to disable `deepLinking` you could pass these settings to `swagger_ui_parameters`:
+
+```Python hl_lines="3"
+{!../../../docs_src/extending_openapi/tutorial005.py!}
+```
+
+### Other Swagger UI Parameters
+
+To see all the other possible configurations you can use, read the official <a href="https://swagger.io/docs/open-source-tools/swagger-ui/usage/configuration" class="external-link" target="_blank">docs for Swagger UI parameters</a>.
+
+### JavaScript-only settings
+
+Swagger UI also allows other configurations to be **JavaScript-only** objects (for example, JavaScript functions).
+
+FastAPI also includes these JavaScript-only `presets` settings:
+
+```JavaScript
+presets: [
+    SwaggerUIBundle.presets.apis,
+    SwaggerUIBundle.SwaggerUIStandalonePreset
+]
+```
+
+These are **JavaScript** objects, not strings, so you can't pass them from Python code directly.
+
+If you need to use JavaScript-only configurations like those, you can use one of the methods above. Override all the Swagger UI *path operation* and manually write any JavaScript you need.

docs/en/docs/img/sponsors/dropbase.svg

@@ -0,0 +1,124 @@
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+<svg
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+   xmlns:cc="http://creativecommons.org/ns#"
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+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   width="240.00002"
+   height="100"
+   viewBox="0 0 240.00002 100"
+   fill="none"
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docs/en/docs/python-types.md

@@ -148,37 +148,62 @@ You can use, for example:
 
 There are some data structures that can contain other values, like `dict`, `list`, `set` and `tuple`. And the internal values can have their own type too.
 
-To declare those types and the internal types, you can use the standard Python module `typing`.
+These types that have internal types are called "**generic**" types. And it's possible to declare them, even with their internal types.
 
-It exists specifically to support these type hints.
+To declare those types and the internal types, you can use the standard Python module `typing`. It exists specifically to support these type hints.
 
-#### `List`
+#### Newer versions of Python
+
+The syntax using `typing` is **compatible** with all versions, from Python 3.6 to the latest ones, including Python 3.9, Python 3.10, etc.
+
+As Python advances, **newer versions** come with improved support for these type annotations and in many cases you won't even need to import and use the `typing` module to declare the type annotations.
+
+If you can chose a more recent version of Python for your project, you will be able to take advantage of that extra simplicity. See some examples below.
+
+#### List
 
 For example, let's define a variable to be a `list` of `str`.
 
-From `typing`, import `List` (with a capital `L`):
+=== "Python 3.6 and above"
 
-```Python hl_lines="1"
-{!../../../docs_src/python_types/tutorial006.py!}
-```
+    From `typing`, import `List` (with a capital `L`):
 
-Declare the variable, with the same colon (`:`) syntax.
+    ``` Python hl_lines="1"
+    {!> ../../../docs_src/python_types/tutorial006.py!}
+    ```
 
-As the type, put the `List`.
+    Declare the variable, with the same colon (`:`) syntax.
 
-As the list is a type that contains some internal types, you put them in square brackets:
+    As the type, put the `List` that you imported from `typing`.
 
-```Python hl_lines="4"
-{!../../../docs_src/python_types/tutorial006.py!}
-```
+    As the list is a type that contains some internal types, you put them in square brackets:
 
-!!! tip
+    ```Python hl_lines="4"
+    {!> ../../../docs_src/python_types/tutorial006.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    Declare the variable, with the same colon (`:`) syntax.
+
+    As the type, put `list`.
+
+    As the list is a type that contains some internal types, you put them in square brackets:
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/python_types/tutorial006_py39.py!}
+    ```
+
+!!! info
     Those internal types in the square brackets are called "type parameters".
 
-    In this case, `str` is the type parameter passed to `List`.
+    In this case, `str` is the type parameter passed to `List` (or `list` in Python 3.9 and above).
 
 That means: "the variable `items` is a `list`, and each of the items in this list is a `str`".
 
+!!! tip
+    If you use Python 3.9 or above, you don't have to import `List` from `typing`, you can use the same regular `list` type instead.
+
 By doing that, your editor can provide support even while processing items from the list:
 
 <img src="/img/python-types/image05.png">
@@ -189,20 +214,28 @@ Notice that the variable `item` is one of the elements in the list `items`.
 
 And still, the editor knows it is a `str`, and provides support for that.
 
-#### `Tuple` and `Set`
+#### Tuple and Set
 
 You would do the same to declare `tuple`s and `set`s:
 
-```Python hl_lines="1  4"
-{!../../../docs_src/python_types/tutorial007.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  4"
+    {!> ../../../docs_src/python_types/tutorial007.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/python_types/tutorial007_py39.py!}
+    ```
 
 This means:
 
 * The variable `items_t` is a `tuple` with 3 items, an `int`, another `int`, and a `str`.
 * The variable `items_s` is a `set`, and each of its items is of type `bytes`.
 
-#### `Dict`
+#### Dict
 
 To define a `dict`, you pass 2 type parameters, separated by commas.
 
@@ -210,9 +243,17 @@ The first type parameter is for the keys of the `dict`.
 
 The second type parameter is for the values of the `dict`:
 
-```Python hl_lines="1  4"
-{!../../../docs_src/python_types/tutorial008.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  4"
+    {!> ../../../docs_src/python_types/tutorial008.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/python_types/tutorial008_py39.py!}
+    ```
 
 This means:
 
@@ -220,9 +261,33 @@ This means:
     * The keys of this `dict` are of type `str` (let's say, the name of each item).
     * The values of this `dict` are of type `float` (let's say, the price of each item).
 
-#### `Optional`
+#### Union
 
-You can also use `Optional` to declare that a variable has a type, like `str`, but that it is "optional", which means that it could also be `None`:
+You can declare that a variable can be any of **several types**, for example, an `int` or a `str`.
+
+In Python 3.6 and above (including Python 3.10) you can use the `Union` type from `typing` and put inside the square brackets the possible types to accept.
+
+In Python 3.10 there's also an **alternative syntax** were you can put the possible types separated by a <abbr title='also called "bitwise or operator", but that meaning is not relevant here'>vertical bar (`|`)</abbr>.
+
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  4"
+    {!> ../../../docs_src/python_types/tutorial008b.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/python_types/tutorial008b_py310.py!}
+    ```
+
+In both cases this means that `item` could be an `int` or a `str`.
+
+#### Possibly `None`
+
+You can declare that a value could have a type, like `str`, but that it could also be `None`.
+
+In Python 3.6 and above (including Python 3.10) you can declare it by importing and using `Optional` from the `typing` module.
 
 ```Python hl_lines="1  4"
 {!../../../docs_src/python_types/tutorial009.py!}
@@ -230,18 +295,73 @@ You can also use `Optional` to declare that a variable has a type, like `str`, b
 
 Using `Optional[str]` instead of just `str` will let the editor help you detecting errors where you could be assuming that a value is always a `str`, when it could actually be `None` too.
 
+`Optional[Something]` is actually a shortcut for `Union[Something, None]`, they are equivalent.
+
+This also means that in Python 3.10, you can use `Something | None`:
+
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  4"
+    {!> ../../../docs_src/python_types/tutorial009.py!}
+    ```
+
+=== "Python 3.6 and above - alternative"
+
+    ```Python hl_lines="1  4"
+    {!> ../../../docs_src/python_types/tutorial009b.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/python_types/tutorial009_py310.py!}
+    ```
+
 #### Generic types
 
-These types that take type parameters in square brackets, like:
+These types that take type parameters in square brackets are called **Generic types** or **Generics**, for example:
 
-* `List`
-* `Tuple`
-* `Set`
-* `Dict`
-* `Optional`
-* ...and others.
+=== "Python 3.6 and above"
 
-are called **Generic types** or **Generics**.
+    * `List`
+    * `Tuple`
+    * `Set`
+    * `Dict`
+    * `Union`
+    * `Optional`
+    * ...and others.
+
+=== "Python 3.9 and above"
+
+    You can use the same builtin types as generics (with square brakets and types inside):
+    
+    * `list`
+    * `tuple`
+    * `set`
+    * `dict`
+
+    And the same as with Python 3.6, from the `typing` module:
+    
+    * `Union`
+    * `Optional`
+    * ...and others.
+
+=== "Python 3.10 and above"
+
+    You can use the same builtin types as generics (with square brakets and types inside):
+
+    * `list`
+    * `tuple`
+    * `set`
+    * `dict`
+    
+    And the same as with Python 3.6, from the `typing` module:
+
+    * `Union`
+    * `Optional` (the same as with Python 3.6)
+    * ...and others.
+
+    In Python 3.10, as an alternative to using the generics `Union` and `Optional`, you can use the <abbr title='also called "bitwise or operator", but that meaning is not relevant here'>vertical bar (`|`)</abbr> to declare unions of types.
 
 ### Classes as types
 
@@ -275,11 +395,25 @@ Then you create an instance of that class with some values and it will validate
 
 And you get all the editor support with that resulting object.
 
-Taken from the official Pydantic docs:
+An example from the official Pydantic docs:
 
-```Python
-{!../../../docs_src/python_types/tutorial011.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python
+    {!> ../../../docs_src/python_types/tutorial011.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python
+    {!> ../../../docs_src/python_types/tutorial011_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python
+    {!> ../../../docs_src/python_types/tutorial011_py310.py!}
+    ```
 
 !!! info
     To learn more about <a href="https://pydantic-docs.helpmanual.io/" class="external-link" target="_blank">Pydantic, check its docs</a>.

docs/en/docs/release-notes.md

@@ -2,6 +2,136 @@
 
 ## Latest Changes
 
+
+## 0.74.0
+
+### Breaking Changes
+
+* ✨ Update internal `AsyncExitStack` to fix context for dependencies with `yield`. PR [#4575](https://github.com/tiangolo/fastapi/pull/4575) by [@tiangolo](https://github.com/tiangolo).
+
+Dependencies with `yield` can now catch `HTTPException` and custom exceptions. For example:
+
+```Python
+async def get_database():
+    with Session() as session:
+        try:
+            yield session
+        except HTTPException:
+            session.rollback()
+            raise
+        finally:
+            session.close()
+```
+
+After the dependency with `yield` handles the exception (or not) the exception is raised again. So that any exception handlers can catch it, or ultimately the default internal `ServerErrorMiddleware`.
+
+If you depended on exceptions not being received by dependencies with `yield`, and receiving an exception breaks the code after `yield`, you can use a block with `try` and `finally`:
+
+```Python
+async def do_something():
+    try:
+        yield something
+    finally:
+        some_cleanup()
+```
+
+...that way the `finally` block is run regardless of any exception that might happen.
+
+### Features
+
+* The same PR [#4575](https://github.com/tiangolo/fastapi/pull/4575) from above also fixes the `contextvars` context for the code before and after `yield`. This was the main objective of that PR.
+
+This means that now, if you set a value in a context variable before `yield`, the value would still be available after `yield` (as you would intuitively expect). And it also means that you can reset the context variable with a token afterwards.
+
+For example, this works correctly now:
+
+```Python
+from contextvars import ContextVar
+from typing import Any, Dict, Optional
+
+
+legacy_request_state_context_var: ContextVar[Optional[Dict[str, Any]]] = ContextVar(
+    "legacy_request_state_context_var", default=None
+)
+
+async def set_up_request_state_dependency():
+    request_state = {"user": "deadpond"}
+    contextvar_token = legacy_request_state_context_var.set(request_state)
+    yield request_state
+    legacy_request_state_context_var.reset(contextvar_token)
+```
+
+...before this change it would raise an error when resetting the context variable, because the `contextvars` context was different, because of the way it was implemented.
+
+**Note**: You probably don't need `contextvars`, and you should probably avoid using them. But they are powerful and useful in some advanced scenarios, for example, migrating from code that used Flask's `g` semi-global variable.
+
+**Technical Details**: If you want to know more of the technical details you can check out the PR description [#4575](https://github.com/tiangolo/fastapi/pull/4575).
+
+### Internal
+
+* 🔧 Add Striveworks sponsor. PR [#4596](https://github.com/tiangolo/fastapi/pull/4596) by [@tiangolo](https://github.com/tiangolo).
+* 💚 Only build docs on push when on master to avoid duplicate runs from PRs. PR [#4564](https://github.com/tiangolo/fastapi/pull/4564) by [@tiangolo](https://github.com/tiangolo).
+* 👥 Update FastAPI People. PR [#4502](https://github.com/tiangolo/fastapi/pull/4502) by [@github-actions[bot]](https://github.com/apps/github-actions).
+
+## 0.73.0
+
+### Features
+
+* ✨ Add support for declaring `UploadFile` parameters without explicit `File()`. PR [#4469](https://github.com/tiangolo/fastapi/pull/4469) by [@tiangolo](https://github.com/tiangolo). New docs: [Request Files - File Parameters with UploadFile](https://fastapi.tiangolo.com/tutorial/request-files/#file-parameters-with-uploadfile).
+* ✨ Add support for tags with Enums. PR [#4468](https://github.com/tiangolo/fastapi/pull/4468) by [@tiangolo](https://github.com/tiangolo). New docs: [Path Operation Configuration - Tags with Enums](https://fastapi.tiangolo.com/tutorial/path-operation-configuration/#tags-with-enums).
+* ✨ Allow hiding from OpenAPI (and Swagger UI) `Query`, `Cookie`, `Header`, and `Path` parameters. PR [#3144](https://github.com/tiangolo/fastapi/pull/3144) by [@astraldawn](https://github.com/astraldawn). New docs: [Query Parameters and String Validations - Exclude from OpenAPI](https://fastapi.tiangolo.com/tutorial/query-params-str-validations/#exclude-from-openapi).
+
+### Docs
+
+* 📝 Tweak and improve docs for Request Files. PR [#4470](https://github.com/tiangolo/fastapi/pull/4470) by [@tiangolo](https://github.com/tiangolo).
+
+### Fixes
+
+* 🐛 Fix bug preventing to use OpenAPI when using tuples. PR [#3874](https://github.com/tiangolo/fastapi/pull/3874) by [@victorbenichoux](https://github.com/victorbenichoux).
+* 🐛 Prefer custom encoder over defaults if specified in `jsonable_encoder`. PR [#2061](https://github.com/tiangolo/fastapi/pull/2061) by [@viveksunder](https://github.com/viveksunder).
+    * 💚 Duplicate PR to trigger CI. PR [#4467](https://github.com/tiangolo/fastapi/pull/4467) by [@tiangolo](https://github.com/tiangolo).
+
+### Internal
+
+* 🐛 Fix docs dependencies cache, to get the latest Material for MkDocs. PR [#4466](https://github.com/tiangolo/fastapi/pull/4466) by [@tiangolo](https://github.com/tiangolo).
+* 🔧 Add sponsor Dropbase. PR [#4465](https://github.com/tiangolo/fastapi/pull/4465) by [@tiangolo](https://github.com/tiangolo).
+
+## 0.72.0
+
+### Features
+
+* ✨ Enable configuring Swagger UI parameters. Original PR [#2568](https://github.com/tiangolo/fastapi/pull/2568) by [@jmriebold](https://github.com/jmriebold). Here are the new docs: [Configuring Swagger UI](https://fastapi.tiangolo.com/advanced/extending-openapi/#configuring-swagger-ui).
+
+### Docs
+
+* 📝 Update Python Types docs, add missing 3.6 / 3.9 example. PR [#4434](https://github.com/tiangolo/fastapi/pull/4434) by [@tiangolo](https://github.com/tiangolo).
+
+### Translations
+
+* 🌐 Update Chinese translation for `docs/help-fastapi.md`. PR [#3847](https://github.com/tiangolo/fastapi/pull/3847) by [@jaystone776](https://github.com/jaystone776).
+* 🌐 Fix Korean translation for `docs/ko/docs/index.md`. PR [#4195](https://github.com/tiangolo/fastapi/pull/4195) by [@kty4119](https://github.com/kty4119).
+* 🌐 Add Polish translation for `docs/pl/docs/index.md`. PR [#4245](https://github.com/tiangolo/fastapi/pull/4245) by [@MicroPanda123](https://github.com/MicroPanda123).
+* 🌐 Add Chinese translation for `docs\tutorial\path-operation-configuration.md`. PR [#3312](https://github.com/tiangolo/fastapi/pull/3312) by [@jaystone776](https://github.com/jaystone776).
+
+### Internal
+
+* 🔧 Enable MkDocs Material Insiders' `content.tabs.link`. PR [#4399](https://github.com/tiangolo/fastapi/pull/4399) by [@tiangolo](https://github.com/tiangolo).
+
+## 0.71.0
+
+### Features
+
+* ✨ Add docs and tests for Python 3.9 and Python 3.10. PR [#3712](https://github.com/tiangolo/fastapi/pull/3712) by [@tiangolo](https://github.com/tiangolo).
+    * You can start with [Python Types Intro](https://fastapi.tiangolo.com/python-types/), it explains what changes between different Python versions, in Python 3.9 and in Python 3.10.
+    * All the FastAPI docs are updated. Each code example in the docs that could use different syntax in Python 3.9 or Python 3.10 now has all the alternatives in tabs.
+* ⬆️ Upgrade Starlette to 0.17.1. PR [#4145](https://github.com/tiangolo/fastapi/pull/4145) by [@simondale00](https://github.com/simondale00).
+
+### Internal
+
+* 👥 Update FastAPI People. PR [#4354](https://github.com/tiangolo/fastapi/pull/4354) by [@github-actions[bot]](https://github.com/apps/github-actions).
+* 🔧 Add FastAPI Trove Classifier for PyPI as now there's one 🤷😁. PR [#4386](https://github.com/tiangolo/fastapi/pull/4386) by [@tiangolo](https://github.com/tiangolo).
+* ⬆ Upgrade MkDocs Material and configs. PR [#4385](https://github.com/tiangolo/fastapi/pull/4385) by [@tiangolo](https://github.com/tiangolo).
+
 ## 0.70.1
 
 There's nothing interesting in this particular FastAPI release. It is mainly to enable/unblock the release of the next version of Pydantic that comes packed with features and improvements. 🤩

docs/en/docs/tutorial/background-tasks.md

@@ -57,9 +57,17 @@ Using `BackgroundTasks` also works with the dependency injection system, you can
 
 **FastAPI** knows what to do in each case and how to re-use the same object, so that all the background tasks are merged together and are run in the background afterwards:
 
-```Python hl_lines="13  15  22  25"
-{!../../../docs_src/background_tasks/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="13  15  22  25"
+    {!> ../../../docs_src/background_tasks/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="11  13  20  23"
+    {!> ../../../docs_src/background_tasks/tutorial002_py310.py!}
+    ```
 
 In this example, the messages will be written to the `log.txt` file *after* the response is sent.
 

docs/en/docs/tutorial/body-fields.md

@@ -6,9 +6,17 @@ The same way you can declare additional validation and metadata in *path operati
 
 First, you have to import it:
 
-```Python hl_lines="4"
-{!../../../docs_src/body_fields/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="4"
+    {!> ../../../docs_src/body_fields/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="2"
+    {!> ../../../docs_src/body_fields/tutorial001_py310.py!}
+    ```
 
 !!! warning
     Notice that `Field` is imported directly from `pydantic`, not from `fastapi` as are all the rest (`Query`, `Path`, `Body`, etc).
@@ -17,9 +25,17 @@ First, you have to import it:
 
 You can then use `Field` with model attributes:
 
-```Python hl_lines="11-14"
-{!../../../docs_src/body_fields/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="11-14"
+    {!> ../../../docs_src/body_fields/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="9-12"
+    {!> ../../../docs_src/body_fields/tutorial001_py310.py!}
+    ```
 
 `Field` works the same way as `Query`, `Path` and `Body`, it has all the same parameters, etc.
 

docs/en/docs/tutorial/body-multiple-params.md

@@ -8,9 +8,17 @@ First, of course, you can mix `Path`, `Query` and request body parameter declara
 
 And you can also declare body parameters as optional, by setting the default to `None`:
 
-```Python hl_lines="19-21"
-{!../../../docs_src/body_multiple_params/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="19-21"
+    {!> ../../../docs_src/body_multiple_params/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17-19"
+    {!> ../../../docs_src/body_multiple_params/tutorial001_py310.py!}
+    ```
 
 !!! note
     Notice that, in this case, the `item` that would be taken from the body is optional. As it has a `None` default value.
@@ -30,9 +38,17 @@ In the previous example, the *path operations* would expect a JSON body with the
 
 But you can also declare multiple body parameters, e.g. `item` and `user`:
 
-```Python hl_lines="22"
-{!../../../docs_src/body_multiple_params/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="22"
+    {!> ../../../docs_src/body_multiple_params/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="20"
+    {!> ../../../docs_src/body_multiple_params/tutorial002_py310.py!}
+    ```
 
 In this case, **FastAPI** will notice that there are more than one body parameters in the function (two parameters that are Pydantic models).
 
@@ -71,14 +87,20 @@ If you declare it as is, because it is a singular value, **FastAPI** will assume
 
 But you can instruct **FastAPI** to treat it as another body key using `Body`:
 
+=== "Python 3.6 and above"
 
-```Python hl_lines="23"
-{!../../../docs_src/body_multiple_params/tutorial003.py!}
-```
+    ```Python hl_lines="23"
+    {!> ../../../docs_src/body_multiple_params/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="21"
+    {!> ../../../docs_src/body_multiple_params/tutorial003_py310.py!}
+    ```
 
 In this case, **FastAPI** will expect a body like:
 
-
 ```JSON
 {
     "item": {
@@ -107,12 +129,26 @@ As, by default, singular values are interpreted as query parameters, you don't h
 q: Optional[str] = None
 ```
 
-as in:
+Or in Python 3.10 and above:
 
-```Python hl_lines="28"
-{!../../../docs_src/body_multiple_params/tutorial004.py!}
+```Python
+q: str | None = None
 ```
 
+For example:
+
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="28"
+    {!> ../../../docs_src/body_multiple_params/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="26"
+    {!> ../../../docs_src/body_multiple_params/tutorial004_py310.py!}
+    ```
+
 !!! info
     `Body` also has all the same extra validation and metadata parameters as `Query`,`Path` and others you will see later.
 
@@ -131,9 +167,17 @@ item: Item = Body(..., embed=True)
 
 as in:
 
-```Python hl_lines="17"
-{!../../../docs_src/body_multiple_params/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/body_multiple_params/tutorial005.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="15"
+    {!> ../../../docs_src/body_multiple_params/tutorial005_py310.py!}
+    ```
 
 In this case **FastAPI** will expect a body like:
 

docs/en/docs/tutorial/body-nested-models.md

@@ -6,9 +6,17 @@ With **FastAPI**, you can define, validate, document, and use arbitrarily deeply
 
 You can define an attribute to be a subtype. For example, a Python `list`:
 
-```Python hl_lines="14"
-{!../../../docs_src/body_nested_models/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="14"
+    {!> ../../../docs_src/body_nested_models/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="12"
+    {!> ../../../docs_src/body_nested_models/tutorial001_py310.py!}
+    ```
 
 This will make `tags` be a list of items. Although it doesn't declare the type of each of the items.
 
@@ -18,19 +26,29 @@ But Python has a specific way to declare lists with internal types, or "type par
 
 ### Import typing's `List`
 
-First, import `List` from standard Python's `typing` module:
+In Python 3.9 and above you can use the standard `list` to declare these type annotations as we'll see below. 💡
+
+But in Python versions before 3.9 (3.6 and above), you first need to import `List` from standard Python's `typing` module:
 
 ```Python hl_lines="1"
-{!../../../docs_src/body_nested_models/tutorial002.py!}
+{!> ../../../docs_src/body_nested_models/tutorial002.py!}
 ```
 
-### Declare a `List` with a type parameter
+### Declare a `list` with a type parameter
 
 To declare types that have type parameters (internal types), like `list`, `dict`, `tuple`:
 
-* Import them from the `typing` module
+* If you are in a Python version lower than 3.9, import their equivalent version from the `typing` module
 * Pass the internal type(s) as "type parameters" using square brackets: `[` and `]`
 
+In Python 3.9 it would be:
+
+```Python
+my_list: list[str]
+```
+
+In versions of Python before 3.9, it would be:
+
 ```Python
 from typing import List
 
@@ -43,9 +61,23 @@ Use that same standard syntax for model attributes with internal types.
 
 So, in our example, we can make `tags` be specifically a "list of strings":
 
-```Python hl_lines="14"
-{!../../../docs_src/body_nested_models/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="14"
+    {!> ../../../docs_src/body_nested_models/tutorial002.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="14"
+    {!> ../../../docs_src/body_nested_models/tutorial002_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="12"
+    {!> ../../../docs_src/body_nested_models/tutorial002_py310.py!}
+    ```
 
 ## Set types
 
@@ -53,11 +85,25 @@ But then we think about it, and realize that tags shouldn't repeat, they would p
 
 And Python has a special data type for sets of unique items, the `set`.
 
-Then we can import `Set` and declare `tags` as a `set` of `str`:
+Then we can declare `tags` as a set of strings:
 
-```Python hl_lines="1  14"
-{!../../../docs_src/body_nested_models/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  14"
+    {!> ../../../docs_src/body_nested_models/tutorial003.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="14"
+    {!> ../../../docs_src/body_nested_models/tutorial003_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="12"
+    {!> ../../../docs_src/body_nested_models/tutorial003_py310.py!}
+    ```
 
 With this, even if you receive a request with duplicate data, it will be converted to a set of unique items.
 
@@ -79,17 +125,45 @@ All that, arbitrarily nested.
 
 For example, we can define an `Image` model:
 
-```Python hl_lines="9-11"
-{!../../../docs_src/body_nested_models/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9-11"
+    {!> ../../../docs_src/body_nested_models/tutorial004.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="9-11"
+    {!> ../../../docs_src/body_nested_models/tutorial004_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7-9"
+    {!> ../../../docs_src/body_nested_models/tutorial004_py310.py!}
+    ```
 
 ### Use the submodel as a type
 
 And then we can use it as the type of an attribute:
 
-```Python hl_lines="20"
-{!../../../docs_src/body_nested_models/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="20"
+    {!> ../../../docs_src/body_nested_models/tutorial004.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="20"
+    {!> ../../../docs_src/body_nested_models/tutorial004_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/body_nested_models/tutorial004_py310.py!}
+    ```
 
 This would mean that **FastAPI** would expect a body similar to:
 
@@ -122,9 +196,23 @@ To see all the options you have, checkout the docs for <a href="https://pydantic
 
 For example, as in the `Image` model we have a `url` field, we can declare it to be instead of a `str`, a Pydantic's `HttpUrl`:
 
-```Python hl_lines="4  10"
-{!../../../docs_src/body_nested_models/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="4  10"
+    {!> ../../../docs_src/body_nested_models/tutorial005.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="4  10"
+    {!> ../../../docs_src/body_nested_models/tutorial005_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="2  8"
+    {!> ../../../docs_src/body_nested_models/tutorial005_py310.py!}
+    ```
 
 The string will be checked to be a valid URL, and documented in JSON Schema / OpenAPI as such.
 
@@ -132,9 +220,23 @@ The string will be checked to be a valid URL, and documented in JSON Schema / Op
 
 You can also use Pydantic models as subtypes of `list`, `set`, etc:
 
-```Python hl_lines="20"
-{!../../../docs_src/body_nested_models/tutorial006.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="20"
+    {!> ../../../docs_src/body_nested_models/tutorial006.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="20"
+    {!> ../../../docs_src/body_nested_models/tutorial006_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/body_nested_models/tutorial006_py310.py!}
+    ```
 
 This will expect (convert, validate, document, etc) a JSON body like:
 
@@ -169,9 +271,23 @@ This will expect (convert, validate, document, etc) a JSON body like:
 
 You can define arbitrarily deeply nested models:
 
-```Python hl_lines="9  14  20  23  27"
-{!../../../docs_src/body_nested_models/tutorial007.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9  14  20  23  27"
+    {!> ../../../docs_src/body_nested_models/tutorial007.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="9  14  20  23  27"
+    {!> ../../../docs_src/body_nested_models/tutorial007_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7  12  18  21  25"
+    {!> ../../../docs_src/body_nested_models/tutorial007_py310.py!}
+    ```
 
 !!! info
     Notice how `Offer` has a list of `Item`s, which in turn have an optional list of `Image`s
@@ -184,11 +300,25 @@ If the top level value of the JSON body you expect is a JSON `array` (a Python `
 images: List[Image]
 ```
 
+or in Python 3.9 and above:
+
+```Python
+images: list[Image]
+```
+
 as in:
 
-```Python hl_lines="15"
-{!../../../docs_src/body_nested_models/tutorial008.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="15"
+    {!> ../../../docs_src/body_nested_models/tutorial008.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="13"
+    {!> ../../../docs_src/body_nested_models/tutorial008_py39.py!}
+    ```
 
 ## Editor support everywhere
 
@@ -218,9 +348,17 @@ That's what we are going to see here.
 
 In this case, you would accept any `dict` as long as it has `int` keys with `float` values:
 
-```Python hl_lines="9"
-{!../../../docs_src/body_nested_models/tutorial009.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/body_nested_models/tutorial009.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/body_nested_models/tutorial009_py39.py!}
+    ```
 
 !!! tip
     Have in mind that JSON only supports `str` as keys.

docs/en/docs/tutorial/body-updates.md

@@ -6,9 +6,23 @@ To update an item you can use the <a href="https://developer.mozilla.org/en-US/d
 
 You can use the `jsonable_encoder` to convert the input data to data that can be stored as JSON (e.g. with a NoSQL database). For example, converting `datetime` to `str`.
 
-```Python hl_lines="30-35"
-{!../../../docs_src/body_updates/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="30-35"
+    {!> ../../../docs_src/body_updates/tutorial001.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="30-35"
+    {!> ../../../docs_src/body_updates/tutorial001_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="28-33"
+    {!> ../../../docs_src/body_updates/tutorial001_py310.py!}
+    ```
 
 `PUT` is used to receive data that should replace the existing data.
 
@@ -53,9 +67,23 @@ That would generate a `dict` with only the data that was set when creating the `
 
 Then you can use this to generate a `dict` with only the data that was set (sent in the request), omitting default values:
 
-```Python hl_lines="34"
-{!../../../docs_src/body_updates/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="34"
+    {!> ../../../docs_src/body_updates/tutorial002.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="34"
+    {!> ../../../docs_src/body_updates/tutorial002_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="32"
+    {!> ../../../docs_src/body_updates/tutorial002_py310.py!}
+    ```
 
 ### Using Pydantic's `update` parameter
 
@@ -63,9 +91,23 @@ Now, you can create a copy of the existing model using `.copy()`, and pass the `
 
 Like `stored_item_model.copy(update=update_data)`:
 
-```Python hl_lines="35"
-{!../../../docs_src/body_updates/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="35"
+    {!> ../../../docs_src/body_updates/tutorial002.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="35"
+    {!> ../../../docs_src/body_updates/tutorial002_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="33"
+    {!> ../../../docs_src/body_updates/tutorial002_py310.py!}
+    ```
 
 ### Partial updates recap
 
@@ -82,9 +124,23 @@ In summary, to apply partial updates you would:
 * Save the data to your DB.
 * Return the updated model.
 
-```Python hl_lines="30-37"
-{!../../../docs_src/body_updates/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="30-37"
+    {!> ../../../docs_src/body_updates/tutorial002.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="30-37"
+    {!> ../../../docs_src/body_updates/tutorial002_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="28-35"
+    {!> ../../../docs_src/body_updates/tutorial002_py310.py!}
+    ```
 
 !!! tip
     You can actually use this same technique with an HTTP `PUT` operation.

docs/en/docs/tutorial/body.md

@@ -19,9 +19,17 @@ To declare a **request** body, you use <a href="https://pydantic-docs.helpmanual
 
 First, you need to import `BaseModel` from `pydantic`:
 
-```Python hl_lines="4"
-{!../../../docs_src/body/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="4"
+    {!> ../../../docs_src/body/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="2"
+    {!> ../../../docs_src/body/tutorial001_py310.py!}
+    ```
 
 ## Create your data model
 
@@ -29,9 +37,17 @@ Then you declare your data model as a class that inherits from `BaseModel`.
 
 Use standard Python types for all the attributes:
 
-```Python hl_lines="7-11"
-{!../../../docs_src/body/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="7-11"
+    {!> ../../../docs_src/body/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="5-9"
+    {!> ../../../docs_src/body/tutorial001_py310.py!}
+    ```
 
 The same as when declaring query parameters, when a model attribute has a default value, it is not required. Otherwise, it is required. Use `None` to make it just optional.
 
@@ -59,9 +75,17 @@ For example, this model above declares a JSON "`object`" (or Python `dict`) like
 
 To add it to your *path operation*, declare it the same way you declared path and query parameters:
 
-```Python hl_lines="18"
-{!../../../docs_src/body/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/body/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="16"
+    {!> ../../../docs_src/body/tutorial001_py310.py!}
+    ```
 
 ...and declare its type as the model you created, `Item`.
 
@@ -125,9 +149,17 @@ But you would get the same editor support with <a href="https://www.jetbrains.co
 
 Inside of the function, you can access all the attributes of the model object directly:
 
-```Python hl_lines="21"
-{!../../../docs_src/body/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="21"
+    {!> ../../../docs_src/body/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="19"
+    {!> ../../../docs_src/body/tutorial002_py310.py!}
+    ```
 
 ## Request body + path parameters
 
@@ -135,9 +167,17 @@ You can declare path parameters and request body at the same time.
 
 **FastAPI** will recognize that the function parameters that match path parameters should be **taken from the path**, and that function parameters that are declared to be Pydantic models should be **taken from the request body**.
 
-```Python hl_lines="17-18"
-{!../../../docs_src/body/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="17-18"
+    {!> ../../../docs_src/body/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="15-16"
+    {!> ../../../docs_src/body/tutorial003_py310.py!}
+    ```
 
 ## Request body + path + query parameters
 
@@ -145,9 +185,17 @@ You can also declare **body**, **path** and **query** parameters, all at the sam
 
 **FastAPI** will recognize each of them and take the data from the correct place.
 
-```Python hl_lines="18"
-{!../../../docs_src/body/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/body/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="16"
+    {!> ../../../docs_src/body/tutorial004_py310.py!}
+    ```
 
 The function parameters will be recognized as follows:
 

docs/en/docs/tutorial/cookie-params.md

@@ -6,9 +6,17 @@ You can define Cookie parameters the same way you define `Query` and `Path` para
 
 First import `Cookie`:
 
-```Python hl_lines="3"
-{!../../../docs_src/cookie_params/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3"
+    {!> ../../../docs_src/cookie_params/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/cookie_params/tutorial001_py310.py!}
+    ```
 
 ## Declare `Cookie` parameters
 
@@ -16,9 +24,17 @@ Then declare the cookie parameters using the same structure as with `Path` and `
 
 The first value is the default value, you can pass all the extra validation or annotation parameters:
 
-```Python hl_lines="9"
-{!../../../docs_src/cookie_params/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/cookie_params/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/cookie_params/tutorial001_py310.py!}
+    ```
 
 !!! note "Technical Details"
     `Cookie` is a "sister" class of `Path` and `Query`. It also inherits from the same common `Param` class.

docs/en/docs/tutorial/dependencies/classes-as-dependencies.md

@@ -6,9 +6,17 @@ Before diving deeper into the **Dependency Injection** system, let's upgrade the
 
 In the previous example, we were returning a `dict` from our dependency ("dependable"):
 
-```Python hl_lines="9"
-{!../../../docs_src/dependencies/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/dependencies/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
+    ```
 
 But then we get a `dict` in the parameter `commons` of the *path operation function*.
 
@@ -71,21 +79,45 @@ That also applies to callables with no parameters at all. The same as it would b
 
 Then, we can change the dependency "dependable" `common_parameters` from above to the class `CommonQueryParams`:
 
-```Python hl_lines="11-15"
-{!../../../docs_src/dependencies/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="11-15"
+    {!> ../../../docs_src/dependencies/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="9-13"
+    {!> ../../../docs_src/dependencies/tutorial002_py310.py!}
+    ```
 
 Pay attention to the `__init__` method used to create the instance of the class:
 
-```Python hl_lines="12"
-{!../../../docs_src/dependencies/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="12"
+    {!> ../../../docs_src/dependencies/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/dependencies/tutorial002_py310.py!}
+    ```
 
 ...it has the same parameters as our previous `common_parameters`:
 
-```Python hl_lines="8"
-{!../../../docs_src/dependencies/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="8"
+    {!> ../../../docs_src/dependencies/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="6"
+    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
+    ```
 
 Those parameters are what **FastAPI** will use to "solve" the dependency.
 
@@ -101,9 +133,17 @@ In both cases the data will be converted, validated, documented on the OpenAPI s
 
 Now you can declare your dependency using this class.
 
-```Python hl_lines="19"
-{!../../../docs_src/dependencies/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="19"
+    {!> ../../../docs_src/dependencies/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/dependencies/tutorial002_py310.py!}
+    ```
 
 **FastAPI** calls the `CommonQueryParams` class. This creates an "instance" of that class and the instance will be passed as the parameter `commons` to your function.
 
@@ -143,9 +183,17 @@ commons = Depends(CommonQueryParams)
 
 ..as in:
 
-```Python hl_lines="19"
-{!../../../docs_src/dependencies/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="19"
+    {!> ../../../docs_src/dependencies/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/dependencies/tutorial003_py310.py!}
+    ```
 
 But declaring the type is encouraged as that way your editor will know what will be passed as the parameter `commons`, and then it can help you with code completion, type checks, etc:
 
@@ -179,9 +227,17 @@ You declare the dependency as the type of the parameter, and you use `Depends()`
 
 The same example would then look like:
 
-```Python hl_lines="19"
-{!../../../docs_src/dependencies/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="19"
+    {!> ../../../docs_src/dependencies/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/dependencies/tutorial004_py310.py!}
+    ```
 
 ...and **FastAPI** will know what to do.
 

docs/en/docs/tutorial/dependencies/dependencies-with-yield.md

@@ -99,7 +99,7 @@ You saw that you can use dependencies with `yield` and have `try` blocks that ca
 
 It might be tempting to raise an `HTTPException` or similar in the exit code, after the `yield`. But **it won't work**.
 
-The exit code in dependencies with `yield` is executed *after* [Exception Handlers](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}. There's nothing catching exceptions thrown by your dependencies in the exit code (after the `yield`).
+The exit code in dependencies with `yield` is executed *after* the response is sent, so [Exception Handlers](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank} will have already run. There's nothing catching exceptions thrown by your dependencies in the exit code (after the `yield`).
 
 So, if you raise an `HTTPException` after the `yield`, the default (or any custom) exception handler that catches `HTTPException`s and returns an HTTP 400 response won't be there to catch that exception anymore.
 
@@ -138,9 +138,11 @@ participant tasks as Background tasks
     end
     dep ->> operation: Run dependency, e.g. DB session
     opt raise
-        operation -->> handler: Raise HTTPException
+        operation -->> dep: Raise HTTPException
+        dep -->> handler: Auto forward exception
         handler -->> client: HTTP error response
         operation -->> dep: Raise other exception
+        dep -->> handler: Auto forward exception
     end
     operation ->> client: Return response to client
     Note over client,operation: Response is already sent, can't change it anymore
@@ -162,9 +164,9 @@ participant tasks as Background tasks
     After one of those responses is sent, no other response can be sent.
 
 !!! tip
-    This diagram shows `HTTPException`, but you could also raise any other exception for which you create a [Custom Exception Handler](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}. And that exception would be handled by that custom exception handler instead of the dependency exit code.
+    This diagram shows `HTTPException`, but you could also raise any other exception for which you create a [Custom Exception Handler](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}.
 
-    But if you raise an exception that is not handled by the exception handlers, it will be handled by the exit code of the dependency.
+    If you raise any exception, it will be passed to the dependencies with yield, including `HTTPException`, and then **again** to the exception handlers. If there's no exception handler for that exception, it will then be handled by the default internal `ServerErrorMiddleware`, returning a 500 HTTP status code, to let the client know that there was an error in the server.
 
 ## Context Managers
 

docs/en/docs/tutorial/dependencies/index.md

@@ -31,9 +31,17 @@ Let's first focus on the dependency.
 
 It is just a function that can take all the same parameters that a *path operation function* can take:
 
-```Python hl_lines="8-9"
-{!../../../docs_src/dependencies/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="8-9"
+    {!> ../../../docs_src/dependencies/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="6-7"
+    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
+    ```
 
 That's it.
 
@@ -55,17 +63,33 @@ And then it just returns a `dict` containing those values.
 
 ### Import `Depends`
 
-```Python hl_lines="3"
-{!../../../docs_src/dependencies/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3"
+    {!> ../../../docs_src/dependencies/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
+    ```
 
 ### Declare the dependency, in the "dependant"
 
 The same way you use `Body`, `Query`, etc. with your *path operation function* parameters, use `Depends` with a new parameter:
 
-```Python hl_lines="13  18"
-{!../../../docs_src/dependencies/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="13  18"
+    {!> ../../../docs_src/dependencies/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="11  16"
+    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
+    ```
 
 Although you use `Depends` in the parameters of your function the same way you use `Body`, `Query`, etc, `Depends` works a bit differently.
 

docs/en/docs/tutorial/dependencies/sub-dependencies.md

@@ -6,25 +6,41 @@ They can be as **deep** as you need them to be.
 
 **FastAPI** will take care of solving them.
 
-### First dependency "dependable"
+## First dependency "dependable"
 
 You could create a first dependency ("dependable") like:
 
-```Python hl_lines="8-9"
-{!../../../docs_src/dependencies/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="8-9"
+    {!> ../../../docs_src/dependencies/tutorial005.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="6-7"
+    {!> ../../../docs_src/dependencies/tutorial005_py310.py!}
+    ```
 
 It declares an optional query parameter `q` as a `str`, and then it just returns it.
 
 This is quite simple (not very useful), but will help us focus on how the sub-dependencies work.
 
-### Second dependency, "dependable" and "dependant"
+## Second dependency, "dependable" and "dependant"
 
 Then you can create another dependency function (a "dependable") that at the same time declares a dependency of its own (so it is a "dependant" too):
 
-```Python hl_lines="13"
-{!../../../docs_src/dependencies/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="13"
+    {!> ../../../docs_src/dependencies/tutorial005.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="11"
+    {!> ../../../docs_src/dependencies/tutorial005_py310.py!}
+    ```
 
 Let's focus on the parameters declared:
 
@@ -33,13 +49,21 @@ Let's focus on the parameters declared:
 * It also declares an optional `last_query` cookie, as a `str`.
     * If the user didn't provide any query `q`, we use the last query used, which we saved to a cookie before.
 
-### Use the dependency
+## Use the dependency
 
 Then we can use the dependency with:
 
-```Python hl_lines="21"
-{!../../../docs_src/dependencies/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="21"
+    {!> ../../../docs_src/dependencies/tutorial005.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="19"
+    {!> ../../../docs_src/dependencies/tutorial005_py310.py!}
+    ```
 
 !!! info
     Notice that we are only declaring one dependency in the *path operation function*, the `query_or_cookie_extractor`.

docs/en/docs/tutorial/encoder.md

@@ -20,9 +20,17 @@ You can use `jsonable_encoder` for that.
 
 It receives an object, like a Pydantic model, and returns a JSON compatible version:
 
-```Python hl_lines="5  22"
-{!../../../docs_src/encoder/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="5  22"
+    {!> ../../../docs_src/encoder/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="4  21"
+    {!> ../../../docs_src/encoder/tutorial001_py310.py!}
+    ```
 
 In this example, it would convert the Pydantic model to a `dict`, and the `datetime` to a `str`.
 

docs/en/docs/tutorial/extra-data-types.md

@@ -55,12 +55,28 @@ Here are some of the additional data types you can use:
 
 Here's an example *path operation* with parameters using some of the above types.
 
-```Python hl_lines="1  3  12-16"
-{!../../../docs_src/extra_data_types/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  3  12-16"
+    {!> ../../../docs_src/extra_data_types/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1  2  11-15"
+    {!> ../../../docs_src/extra_data_types/tutorial001_py310.py!}
+    ```
 
 Note that the parameters inside the function have their natural data type, and you can, for example, perform normal date manipulations, like:
 
-```Python hl_lines="18-19"
-{!../../../docs_src/extra_data_types/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="18-19"
+    {!> ../../../docs_src/extra_data_types/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17-18"
+    {!> ../../../docs_src/extra_data_types/tutorial001_py310.py!}
+    ```

docs/en/docs/tutorial/extra-models.md

@@ -17,9 +17,17 @@ This is especially the case for user models, because:
 
 Here's a general idea of how the models could look like with their password fields and the places where they are used:
 
-```Python hl_lines="9  11  16  22  24  29-30  33-35  40-41"
-{!../../../docs_src/extra_models/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9  11  16  22  24  29-30  33-35  40-41"
+    {!> ../../../docs_src/extra_models/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7  9  14  20  22  27-28  31-33  38-39"
+    {!> ../../../docs_src/extra_models/tutorial001_py310.py!}
+    ```
 
 ### About `**user_in.dict()`
 
@@ -150,9 +158,17 @@ All the data conversion, validation, documentation, etc. will still work as norm
 
 That way, we can declare just the differences between the models (with plaintext `password`, with `hashed_password` and without password):
 
-```Python hl_lines="9  15-16  19-20  23-24"
-{!../../../docs_src/extra_models/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9  15-16  19-20  23-24"
+    {!> ../../../docs_src/extra_models/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7  13-14  17-18  21-22"
+    {!> ../../../docs_src/extra_models/tutorial002_py310.py!}
+    ```
 
 ## `Union` or `anyOf`
 
@@ -165,19 +181,49 @@ To do that, use the standard Python type hint <a href="https://docs.python.org/3
 !!! note
     When defining a <a href="https://pydantic-docs.helpmanual.io/usage/types/#unions" class="external-link" target="_blank">`Union`</a>, include the most specific type first, followed by the less specific type. In the example below, the more specific `PlaneItem` comes before `CarItem` in `Union[PlaneItem, CarItem]`.
 
-```Python hl_lines="1  14-15  18-20  33"
-{!../../../docs_src/extra_models/tutorial003.py!}
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  14-15  18-20  33"
+    {!> ../../../docs_src/extra_models/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1  14-15  18-20  33"
+    {!> ../../../docs_src/extra_models/tutorial003_py310.py!}
+    ```
+
+### `Union` in Python 3.10
+
+In this example we pass `Union[PlaneItem, CarItem]` as the value of the argument `response_model`.
+
+Because we are passing it as a **value to an argument** instead of putting it in a **type annotation**, we have to use `Union` even in Python 3.10.
+
+If it was in a type annotation we could have used the vertical bar, as:
+
+```Python
+some_variable: PlaneItem | CarItem
 ```
 
+But if we put that in `response_model=PlaneItem | CarItem` we would get an error, because Python would try to perform an **invalid operation** between `PlaneItem` and `CarItem` instead of interpreting that as a type annotation.
+
 ## List of models
 
 The same way, you can declare responses of lists of objects.
 
-For that, use the standard Python `typing.List`:
+For that, use the standard Python `typing.List` (or just `list` in Python 3.9 and above):
 
-```Python hl_lines="1  20"
-{!../../../docs_src/extra_models/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  20"
+    {!> ../../../docs_src/extra_models/tutorial004.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/extra_models/tutorial004_py39.py!}
+    ```
 
 ## Response with arbitrary `dict`
 
@@ -185,11 +231,19 @@ You can also declare a response using a plain arbitrary `dict`, declaring just t
 
 This is useful if you don't know the valid field/attribute names (that would be needed for a Pydantic model) beforehand.
 
-In this case, you can use `typing.Dict`:
+In this case, you can use `typing.Dict` (or just `dict` in Python 3.9 and above):
 
-```Python hl_lines="1  8"
-{!../../../docs_src/extra_models/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="1  8"
+    {!> ../../../docs_src/extra_models/tutorial005.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="6"
+    {!> ../../../docs_src/extra_models/tutorial005_py39.py!}
+    ```
 
 ## Recap
 

docs/en/docs/tutorial/header-params.md

@@ -6,9 +6,17 @@ You can define Header parameters the same way you define `Query`, `Path` and `Co
 
 First import `Header`:
 
-```Python hl_lines="3"
-{!../../../docs_src/header_params/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3"
+    {!> ../../../docs_src/header_params/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/header_params/tutorial001_py310.py!}
+    ```
 
 ## Declare `Header` parameters
 
@@ -16,9 +24,17 @@ Then declare the header parameters using the same structure as with `Path`, `Que
 
 The first value is the default value, you can pass all the extra validation or annotation parameters:
 
-```Python hl_lines="9"
-{!../../../docs_src/header_params/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/header_params/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/header_params/tutorial001_py310.py!}
+    ```
 
 !!! note "Technical Details"
     `Header` is a "sister" class of `Path`, `Query` and `Cookie`. It also inherits from the same common `Param` class.
@@ -44,14 +60,21 @@ So, you can use `user_agent` as you normally would in Python code, instead of ne
 
 If for some reason you need to disable automatic conversion of underscores to hyphens, set the parameter `convert_underscores` of `Header` to `False`:
 
-```Python hl_lines="10"
-{!../../../docs_src/header_params/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/header_params/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="8"
+    {!> ../../../docs_src/header_params/tutorial002_py310.py!}
+    ```
 
 !!! warning
     Before setting `convert_underscores` to `False`, bear in mind that some HTTP proxies and servers disallow the usage of headers with underscores.
 
-
 ## Duplicate headers
 
 It is possible to receive duplicate headers. That means, the same header with multiple values.
@@ -62,9 +85,23 @@ You will receive all the values from the duplicate header as a Python `list`.
 
 For example, to declare a header of `X-Token` that can appear more than once, you can write:
 
-```Python hl_lines="9"
-{!../../../docs_src/header_params/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/header_params/tutorial003.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/header_params/tutorial003_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/header_params/tutorial003_py310.py!}
+    ```
 
 If you communicate with that *path operation* sending two HTTP headers like:
 

docs/en/docs/tutorial/path-operation-configuration.md

@@ -13,9 +13,23 @@ You can pass directly the `int` code, like `404`.
 
 But if you don't remember what each number code is for, you can use the shortcut constants in `status`:
 
-```Python hl_lines="3  17"
-{!../../../docs_src/path_operation_configuration/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3  17"
+    {!> ../../../docs_src/path_operation_configuration/tutorial001.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="3  17"
+    {!> ../../../docs_src/path_operation_configuration/tutorial001_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1  15"
+    {!> ../../../docs_src/path_operation_configuration/tutorial001_py310.py!}
+    ```
 
 That status code will be used in the response and will be added to the OpenAPI schema.
 
@@ -28,21 +42,61 @@ That status code will be used in the response and will be added to the OpenAPI s
 
 You can add tags to your *path operation*, pass the parameter `tags` with a `list` of `str` (commonly just one `str`):
 
-```Python hl_lines="17  22  27"
-{!../../../docs_src/path_operation_configuration/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="17  22  27"
+    {!> ../../../docs_src/path_operation_configuration/tutorial002.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="17  22  27"
+    {!> ../../../docs_src/path_operation_configuration/tutorial002_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="15  20  25"
+    {!> ../../../docs_src/path_operation_configuration/tutorial002_py310.py!}
+    ```
 
 They will be added to the OpenAPI schema and used by the automatic documentation interfaces:
 
 <img src="/img/tutorial/path-operation-configuration/image01.png">
 
+### Tags with Enums
+
+If you have a big application, you might end up accumulating **several tags**, and you would want to make sure you always use the **same tag** for related *path operations*.
+
+In these cases, it could make sense to store the tags in an `Enum`.
+
+**FastAPI** supports that the same way as with plain strings:
+
+```Python hl_lines="1  8-10  13  18"
+{!../../../docs_src/path_operation_configuration/tutorial002b.py!}
+```
+
 ## Summary and description
 
 You can add a `summary` and `description`:
 
-```Python hl_lines="20-21"
-{!../../../docs_src/path_operation_configuration/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="20-21"
+    {!> ../../../docs_src/path_operation_configuration/tutorial003.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="20-21"
+    {!> ../../../docs_src/path_operation_configuration/tutorial003_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="18-19"
+    {!> ../../../docs_src/path_operation_configuration/tutorial003_py310.py!}
+    ```
 
 ## Description from docstring
 
@@ -50,9 +104,23 @@ As descriptions tend to be long and cover multiple lines, you can declare the *p
 
 You can write <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a> in the docstring, it will be interpreted and displayed correctly (taking into account docstring indentation).
 
-```Python hl_lines="19-27"
-{!../../../docs_src/path_operation_configuration/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="19-27"
+    {!> ../../../docs_src/path_operation_configuration/tutorial004.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="19-27"
+    {!> ../../../docs_src/path_operation_configuration/tutorial004_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17-25"
+    {!> ../../../docs_src/path_operation_configuration/tutorial004_py310.py!}
+    ```
 
 It will be used in the interactive docs:
 
@@ -62,9 +130,23 @@ It will be used in the interactive docs:
 
 You can specify the response description with the parameter `response_description`:
 
-```Python hl_lines="21"
-{!../../../docs_src/path_operation_configuration/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="21"
+    {!> ../../../docs_src/path_operation_configuration/tutorial005.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="21"
+    {!> ../../../docs_src/path_operation_configuration/tutorial005_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="19"
+    {!> ../../../docs_src/path_operation_configuration/tutorial005_py310.py!}
+    ```
 
 !!! info
     Notice that `response_description` refers specifically to the response, the `description` refers to the *path operation* in general.

docs/en/docs/tutorial/path-params-numeric-validations.md

@@ -6,9 +6,17 @@ The same way you can declare more validations and metadata for query parameters
 
 First, import `Path` from `fastapi`:
 
-```Python hl_lines="3"
-{!../../../docs_src/path_params_numeric_validations/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3"
+    {!> ../../../docs_src/path_params_numeric_validations/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/path_params_numeric_validations/tutorial001_py310.py!}
+    ```
 
 ## Declare metadata
 
@@ -16,13 +24,21 @@ You can declare all the same parameters as for `Query`.
 
 For example, to declare a `title` metadata value for the path parameter `item_id` you can type:
 
-```Python hl_lines="10"
-{!../../../docs_src/path_params_numeric_validations/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/path_params_numeric_validations/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="8"
+    {!> ../../../docs_src/path_params_numeric_validations/tutorial001_py310.py!}
+    ```
 
 !!! note
     A path parameter is always required as it has to be part of the path.
-    
+
     So, you should declare it with `...` to mark it as required.
 
     Nevertheless, even if you declared it with `None` or set a default value, it would not affect anything, it would still be always required.

docs/en/docs/tutorial/query-params-str-validations.md

@@ -4,11 +4,19 @@
 
 Let's take this application as example:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params_str_validations/tutorial001.py!}
-```
+=== "Python 3.6 and above"
 
-The query parameter `q` is of type `Optional[str]`, that means that it's of type `str` but could also be `None`, and indeed, the default value is `None`, so FastAPI will know it's not required.
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial001_py310.py!}
+    ```
+
+The query parameter `q` is of type `Optional[str]` (or `str | None` in Python 3.10), that means that it's of type `str` but could also be `None`, and indeed, the default value is `None`, so FastAPI will know it's not required.
 
 !!! note
     FastAPI will know that the value of `q` is not required because of the default value `= None`.
@@ -23,17 +31,33 @@ We are going to enforce that even though `q` is optional, whenever it is provide
 
 To achieve that, first import `Query` from `fastapi`:
 
-```Python hl_lines="3"
-{!../../../docs_src/query_params_str_validations/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3"
+    {!> ../../../docs_src/query_params_str_validations/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1"
+    {!> ../../../docs_src/query_params_str_validations/tutorial002_py310.py!}
+    ```
 
 ## Use `Query` as the default value
 
 And now use it as the default value of your parameter, setting the parameter `max_length` to 50:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params_str_validations/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial002_py310.py!}
+    ```
 
 As we have to replace the default value `None` with `Query(None)`, the first parameter to `Query` serves the same purpose of defining that default value.
 
@@ -49,10 +73,22 @@ q: Optional[str] = Query(None)
 q: Optional[str] = None
 ```
 
+And in Python 3.10 and above:
+
+```Python
+q: str | None = Query(None)
+```
+
+...makes the parameter optional, the same as:
+
+```Python
+q: str | None = None
+```
+
 But it declares it explicitly as being a query parameter.
 
 !!! info
-    Have in mind that FastAPI cares about the part:
+    Have in mind that the most important part to make a parameter optional is the part:
 
     ```Python
     = None
@@ -64,9 +100,9 @@ But it declares it explicitly as being a query parameter.
     = Query(None)
     ```
 
-    and will use that `None` to detect that the query parameter is not required.
+    as it will use that `None` as the default value, and that way make the parameter **not required**.
 
-    The `Optional` part is only to allow your editor to provide better support.
+    The `Optional` part allows your editor to provide better support, but it is not what tells FastAPI that this parameter is not required.
 
 Then, we can pass more parameters to `Query`. In this case, the `max_length` parameter that applies to strings:
 
@@ -80,17 +116,33 @@ This will validate the data, show a clear error when the data is not valid, and
 
 You can also add a parameter `min_length`:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params_str_validations/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial003_py310.py!}
+    ```
 
 ## Add regular expressions
 
 You can define a <abbr title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">regular expression</abbr> that the parameter should match:
 
-```Python hl_lines="10"
-{!../../../docs_src/query_params_str_validations/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/query_params_str_validations/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="8"
+    {!> ../../../docs_src/query_params_str_validations/tutorial004_py310.py!}
+    ```
 
 This specific regular expression checks that the received parameter value:
 
@@ -152,9 +204,23 @@ When you define a query parameter explicitly with `Query` you can also declare i
 
 For example, to declare a query parameter `q` that can appear multiple times in the URL, you can write:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params_str_validations/tutorial011.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial011.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial011_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial011_py310.py!}
+    ```
 
 Then, with a URL like:
 
@@ -186,9 +252,17 @@ The interactive API docs will update accordingly, to allow multiple values:
 
 And you can also define a default `list` of values if none are provided:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params_str_validations/tutorial012.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial012.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial012_py39.py!}
+    ```
 
 If you go to:
 
@@ -209,7 +283,7 @@ the default of `q` will be: `["foo", "bar"]` and your response will be:
 
 #### Using `list`
 
-You can also use `list` directly instead of `List[str]`:
+You can also use `list` directly instead of `List[str]` (or `list[str]` in Python 3.9+):
 
 ```Python hl_lines="7"
 {!../../../docs_src/query_params_str_validations/tutorial013.py!}
@@ -233,15 +307,31 @@ That information will be included in the generated OpenAPI and used by the docum
 
 You can add a `title`:
 
-```Python hl_lines="10"
-{!../../../docs_src/query_params_str_validations/tutorial007.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/query_params_str_validations/tutorial007.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial007_py310.py!}
+    ```
 
 And a `description`:
 
-```Python hl_lines="13"
-{!../../../docs_src/query_params_str_validations/tutorial008.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="13"
+    {!> ../../../docs_src/query_params_str_validations/tutorial008.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="12"
+    {!> ../../../docs_src/query_params_str_validations/tutorial008_py310.py!}
+    ```
 
 ## Alias parameters
 
@@ -261,9 +351,17 @@ But you still need it to be exactly `item-query`...
 
 Then you can declare an `alias`, and that alias is what will be used to find the parameter value:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params_str_validations/tutorial009.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params_str_validations/tutorial009.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial009_py310.py!}
+    ```
 
 ## Deprecating parameters
 
@@ -273,14 +371,38 @@ You have to leave it there a while because there are clients using it, but you w
 
 Then pass the parameter `deprecated=True` to `Query`:
 
-```Python hl_lines="18"
-{!../../../docs_src/query_params_str_validations/tutorial010.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/query_params_str_validations/tutorial010.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/query_params_str_validations/tutorial010_py310.py!}
+    ```
 
 The docs will show it like this:
 
 <img src="/img/tutorial/query-params-str-validations/image01.png">
 
+## Exclude from OpenAPI
+
+To exclude a query parameter from the generated OpenAPI schema (and thus, from the automatic documentation systems), set the parameter `include_in_schema` of `Query` to `False`:
+
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/query_params_str_validations/tutorial014.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params_str_validations/tutorial014_py310.py!}
+    ```
+
 ## Recap
 
 You can declare additional validations and metadata for your parameters.

docs/en/docs/tutorial/query-params.md

@@ -63,27 +63,38 @@ The parameter values in your function will be:
 
 The same way, you can declare optional query parameters, by setting their default to `None`:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params/tutorial002_py310.py!}
+    ```
 
 In this case, the function parameter `q` will be optional, and will be `None` by default.
 
 !!! check
     Also notice that **FastAPI** is smart enough to notice that the path parameter `item_id` is a path parameter and `q` is not, so, it's a query parameter.
 
-!!! note
-    FastAPI will know that `q` is optional because of the `= None`.
-
-    The `Optional` in `Optional[str]` is not used by FastAPI (FastAPI will only use the `str` part), but the `Optional[str]` will let your editor help you finding errors in your code.
-
 ## Query parameter type conversion
 
 You can also declare `bool` types, and they will be converted:
 
-```Python hl_lines="9"
-{!../../../docs_src/query_params/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/query_params/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/query_params/tutorial003_py310.py!}
+    ```
 
 In this case, if you go to:
 
@@ -126,9 +137,17 @@ And you don't have to declare them in any specific order.
 
 They will be detected by name:
 
-```Python hl_lines="8  10"
-{!../../../docs_src/query_params/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="8  10"
+    {!> ../../../docs_src/query_params/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="6  8"
+    {!> ../../../docs_src/query_params/tutorial004_py310.py!}
+    ```
 
 ## Required query parameters
 
@@ -184,9 +203,17 @@ http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
 
 And of course, you can define some parameters as required, some as having a default value, and some entirely optional:
 
-```Python hl_lines="10"
-{!../../../docs_src/query_params/tutorial006.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10"
+    {!> ../../../docs_src/query_params/tutorial006.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="8"
+    {!> ../../../docs_src/query_params/tutorial006_py310.py!}
+    ```
 
 In this case, there are 3 query parameters:
 

docs/en/docs/tutorial/request-files.md

@@ -17,7 +17,7 @@ Import `File` and `UploadFile` from `fastapi`:
 {!../../../docs_src/request_files/tutorial001.py!}
 ```
 
-## Define `File` parameters
+## Define `File` Parameters
 
 Create file parameters the same way you would for `Body` or `Form`:
 
@@ -41,9 +41,9 @@ Have in mind that this means that the whole contents will be stored in memory. T
 
 But there are several cases in which you might benefit from using `UploadFile`.
 
-## `File` parameters with `UploadFile`
+## File Parameters with `UploadFile`
 
-Define a `File` parameter with a type of `UploadFile`:
+Define a file parameter with a type of `UploadFile`:
 
 ```Python hl_lines="12"
 {!../../../docs_src/request_files/tutorial001.py!}
@@ -51,6 +51,7 @@ Define a `File` parameter with a type of `UploadFile`:
 
 Using `UploadFile` has several advantages over `bytes`:
 
+* You don't have to use `File()` in the default value of the parameter.
 * It uses a "spooled" file:
     * A file stored in memory up to a maximum size limit, and after passing this limit it will be stored in disk.
 * This means that it will work well for large files like images, videos, large binaries, etc. without consuming all the memory.
@@ -113,17 +114,49 @@ The way HTML forms (`<form></form>`) sends the data to the server normally uses
 
     This is not a limitation of **FastAPI**, it's part of the HTTP protocol.
 
-## Multiple file uploads
+## Optional File Upload
+
+You can make a file optional by using standard type annotations and setting a default value of `None`:
+
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9  17"
+    {!> ../../../docs_src/request_files/tutorial001_02.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="7  14"
+    {!> ../../../docs_src/request_files/tutorial001_02_py310.py!}
+    ```
+
+## `UploadFile` with Additional Metadata
+
+You can also use `File()` with `UploadFile`, for example, to set additional metadata:
+
+```Python hl_lines="13"
+{!../../../docs_src/request_files/tutorial001_03.py!}
+```
+
+## Multiple File Uploads
 
 It's possible to upload several files at the same time.
 
 They would be associated to the same "form field" sent using "form data".
 
-To use that, declare a `List` of `bytes` or `UploadFile`:
+To use that, declare a list of `bytes` or `UploadFile`:
 
-```Python hl_lines="10  15"
-{!../../../docs_src/request_files/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="10  15"
+    {!> ../../../docs_src/request_files/tutorial002.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="8  13"
+    {!> ../../../docs_src/request_files/tutorial002_py39.py!}
+    ```
 
 You will receive, as declared, a `list` of `bytes` or `UploadFile`s.
 
@@ -132,6 +165,22 @@ You will receive, as declared, a `list` of `bytes` or `UploadFile`s.
 
     **FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette.
 
+### Multiple File Uploads with Additional Metadata
+
+And the same way as before, you can use `File()` to set additional parameters, even for `UploadFile`:
+
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="18"
+    {!> ../../../docs_src/request_files/tutorial003.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="16"
+    {!> ../../../docs_src/request_files/tutorial003_py39.py!}
+    ```
+
 ## Recap
 
-Use `File` to declare files to be uploaded as input parameters (as form data).
+Use `File`, `bytes`, and `UploadFile` to declare files to be uploaded in the request, sent as form data.

docs/en/docs/tutorial/response-model.md

@@ -8,9 +8,23 @@ You can declare the model used for the response with the parameter `response_mod
 * `@app.delete()`
 * etc.
 
-```Python hl_lines="17"
-{!../../../docs_src/response_model/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/response_model/tutorial001.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="17"
+    {!> ../../../docs_src/response_model/tutorial001_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="15"
+    {!> ../../../docs_src/response_model/tutorial001_py310.py!}
+    ```
 
 !!! note
     Notice that `response_model` is a parameter of the "decorator" method (`get`, `post`, etc). Not of your *path operation function*, like all the parameters and body.
@@ -35,15 +49,31 @@ But most importantly:
 
 Here we are declaring a `UserIn` model, it will contain a plaintext password:
 
-```Python hl_lines="9  11"
-{!../../../docs_src/response_model/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9  11"
+    {!> ../../../docs_src/response_model/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7  9"
+    {!> ../../../docs_src/response_model/tutorial002_py310.py!}
+    ```
 
 And we are using this model to declare our input and the same model to declare our output:
 
-```Python hl_lines="17-18"
-{!../../../docs_src/response_model/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="17-18"
+    {!> ../../../docs_src/response_model/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="15-16"
+    {!> ../../../docs_src/response_model/tutorial002_py310.py!}
+    ```
 
 Now, whenever a browser is creating a user with a password, the API will return the same password in the response.
 
@@ -58,21 +88,45 @@ But if we use the same model for another *path operation*, we could be sending o
 
 We can instead create an input model with the plaintext password and an output model without it:
 
-```Python hl_lines="9  11  16"
-{!../../../docs_src/response_model/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9  11  16"
+    {!> ../../../docs_src/response_model/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="7  9  14"
+    {!> ../../../docs_src/response_model/tutorial003_py310.py!}
+    ```
 
 Here, even though our *path operation function* is returning the same input user that contains the password:
 
-```Python hl_lines="24"
-{!../../../docs_src/response_model/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="24"
+    {!> ../../../docs_src/response_model/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="22"
+    {!> ../../../docs_src/response_model/tutorial003_py310.py!}
+    ```
 
 ...we declared the `response_model` to be our model `UserOut`, that doesn't include the password:
 
-```Python hl_lines="22"
-{!../../../docs_src/response_model/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="22"
+    {!> ../../../docs_src/response_model/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="20"
+    {!> ../../../docs_src/response_model/tutorial003_py310.py!}
+    ```
 
 So, **FastAPI** will take care of filtering out all the data that is not declared in the output model (using Pydantic).
 
@@ -90,9 +144,23 @@ And both models will be used for the interactive API documentation:
 
 Your response model could have default values, like:
 
-```Python hl_lines="11  13-14"
-{!../../../docs_src/response_model/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="11  13-14"
+    {!> ../../../docs_src/response_model/tutorial004.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="11  13-14"
+    {!> ../../../docs_src/response_model/tutorial004_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="9  11-12"
+    {!> ../../../docs_src/response_model/tutorial004_py310.py!}
+    ```
 
 * `description: Optional[str] = None` has a default of `None`.
 * `tax: float = 10.5` has a default of `10.5`.
@@ -106,9 +174,23 @@ For example, if you have models with many optional attributes in a NoSQL databas
 
 You can set the *path operation decorator* parameter `response_model_exclude_unset=True`:
 
-```Python hl_lines="24"
-{!../../../docs_src/response_model/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="24"
+    {!> ../../../docs_src/response_model/tutorial004.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="24"
+    {!> ../../../docs_src/response_model/tutorial004_py39.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="22"
+    {!> ../../../docs_src/response_model/tutorial004_py310.py!}
+    ```
 
 and those default values won't be included in the response, only the values actually set.
 
@@ -185,9 +267,17 @@ This can be used as a quick shortcut if you have only one Pydantic model and wan
 
     This also applies to `response_model_by_alias` that works similarly.
 
-```Python hl_lines="31  37"
-{!../../../docs_src/response_model/tutorial005.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="31  37"
+    {!> ../../../docs_src/response_model/tutorial005.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="29  35"
+    {!> ../../../docs_src/response_model/tutorial005_py310.py!}
+    ```
 
 !!! tip
     The syntax `{"name", "description"}` creates a `set` with those two values.
@@ -198,9 +288,17 @@ This can be used as a quick shortcut if you have only one Pydantic model and wan
 
 If you forget to use a `set` and use a `list` or `tuple` instead, FastAPI will still convert it to a `set` and it will work correctly:
 
-```Python hl_lines="31  37"
-{!../../../docs_src/response_model/tutorial006.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="31  37"
+    {!> ../../../docs_src/response_model/tutorial006.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="29  35"
+    {!> ../../../docs_src/response_model/tutorial006_py310.py!}
+    ```
 
 ## Recap
 

docs/en/docs/tutorial/schema-extra-example.md

@@ -8,9 +8,17 @@ Here are several ways to do it.
 
 You can declare an `example` for a Pydantic model using `Config` and `schema_extra`, as described in <a href="https://pydantic-docs.helpmanual.io/usage/schema/#schema-customization" class="external-link" target="_blank">Pydantic's docs: Schema customization</a>:
 
-```Python hl_lines="15-23"
-{!../../../docs_src/schema_extra_example/tutorial001.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="15-23"
+    {!> ../../../docs_src/schema_extra_example/tutorial001.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="13-21"
+    {!> ../../../docs_src/schema_extra_example/tutorial001_py310.py!}
+    ```
 
 That extra info will be added as-is to the output **JSON Schema** for that model, and it will be used in the API docs.
 
@@ -25,9 +33,17 @@ When using `Field()` with Pydantic models, you can also declare extra info for t
 
 You can use this to add `example` for each field:
 
-```Python hl_lines="4  10-13"
-{!../../../docs_src/schema_extra_example/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="4  10-13"
+    {!> ../../../docs_src/schema_extra_example/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="2  8-11"
+    {!> ../../../docs_src/schema_extra_example/tutorial002_py310.py!}
+    ```
 
 !!! warning
     Keep in mind that those extra arguments passed won't add any validation, only extra information, for documentation purposes.
@@ -50,9 +66,17 @@ you can also declare a data `example` or a group of `examples` with additional i
 
 Here we pass an `example` of the data expected in `Body()`:
 
-```Python hl_lines="21-26"
-{!../../../docs_src/schema_extra_example/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="21-26"
+    {!> ../../../docs_src/schema_extra_example/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="19-24"
+    {!> ../../../docs_src/schema_extra_example/tutorial003_py310.py!}
+    ```
 
 ### Example in the docs UI
 
@@ -73,9 +97,17 @@ Each specific example `dict` in the `examples` can contain:
 * `value`: This is the actual example shown, e.g. a `dict`.
 * `externalValue`: alternative to `value`, a URL pointing to the example. Although this might not be supported by as many tools as `value`.
 
-```Python hl_lines="22-48"
-{!../../../docs_src/schema_extra_example/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="22-48"
+    {!> ../../../docs_src/schema_extra_example/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="20-46"
+    {!> ../../../docs_src/schema_extra_example/tutorial004_py310.py!}
+    ```
 
 ### Examples in the docs UI
 

docs/en/docs/tutorial/security/get-current-user.md

@@ -16,9 +16,17 @@ First, let's create a Pydantic user model.
 
 The same way we use Pydantic to declare bodies, we can use it anywhere else:
 
-```Python hl_lines="5  12-16"
-{!../../../docs_src/security/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="5  12-16"
+    {!> ../../../docs_src/security/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="3  10-14"
+    {!> ../../../docs_src/security/tutorial002_py310.py!}
+    ```
 
 ## Create a `get_current_user` dependency
 
@@ -30,25 +38,49 @@ Remember that dependencies can have sub-dependencies?
 
 The same as we were doing before in the *path operation* directly, our new dependency `get_current_user` will receive a `token` as a `str` from the sub-dependency `oauth2_scheme`:
 
-```Python hl_lines="25"
-{!../../../docs_src/security/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="25"
+    {!> ../../../docs_src/security/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="23"
+    {!> ../../../docs_src/security/tutorial002_py310.py!}
+    ```
 
 ## Get the user
 
 `get_current_user` will use a (fake) utility function we created, that takes a token as a `str` and returns our Pydantic `User` model:
 
-```Python hl_lines="19-22  26-27"
-{!../../../docs_src/security/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="19-22  26-27"
+    {!> ../../../docs_src/security/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="17-20  24-25"
+    {!> ../../../docs_src/security/tutorial002_py310.py!}
+    ```
 
 ## Inject the current user
 
 So now we can use the same `Depends` with our `get_current_user` in the *path operation*:
 
-```Python hl_lines="31"
-{!../../../docs_src/security/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="31"
+    {!> ../../../docs_src/security/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="29"
+    {!> ../../../docs_src/security/tutorial002_py310.py!}
+    ```
 
 Notice that we declare the type of `current_user` as the Pydantic model `User`.
 
@@ -64,7 +96,6 @@ This will help us inside of the function with all the completion and type checks
 
     We are not restricted to having only one dependency that can return that type of data.
 
-
 ## Other models
 
 You can now get the current user directly in the *path operation functions* and deal with the security mechanisms at the **Dependency Injection** level, using `Depends`.
@@ -81,7 +112,6 @@ You actually don't have users that log in to your application but robots, bots,
 
 Just use any kind of model, any kind of class, any kind of database that you need for your application. **FastAPI** has you covered with the dependency injection system.
 
-
 ## Code size
 
 This example might seem verbose. Have in mind that we are mixing security, data models, utility functions and *path operations* in the same file.
@@ -98,9 +128,17 @@ And all of them (or any portion of them that you want) can take the advantage of
 
 And all these thousands of *path operations* can be as small as 3 lines:
 
-```Python hl_lines="30-32"
-{!../../../docs_src/security/tutorial002.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="30-32"
+    {!> ../../../docs_src/security/tutorial002.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="28-30"
+    {!> ../../../docs_src/security/tutorial002_py310.py!}
+    ```
 
 ## Recap
 

docs/en/docs/tutorial/security/oauth2-jwt.md

@@ -109,9 +109,17 @@ And another utility to verify if a received password matches the hash stored.
 
 And another one to authenticate and return a user.
 
-```Python hl_lines="7  48  55-56  59-60  69-75"
-{!../../../docs_src/security/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="7  48  55-56  59-60  69-75"
+    {!> ../../../docs_src/security/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="6  47  54-55  58-59  68-74"
+    {!> ../../../docs_src/security/tutorial004_py310.py!}
+    ```
 
 !!! note
     If you check the new (fake) database `fake_users_db`, you will see how the hashed password looks like now: `"$2b$12$EixZaYVK1fsbw1ZfbX3OXePaWxn96p36WQoeG6Lruj3vjPGga31lW"`.
@@ -144,9 +152,17 @@ Define a Pydantic Model that will be used in the token endpoint for the response
 
 Create a utility function to generate a new access token.
 
-```Python hl_lines="6  12-14  28-30  78-86"
-{!../../../docs_src/security/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="6  12-14  28-30  78-86"
+    {!> ../../../docs_src/security/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="5  11-13  27-29  77-85"
+    {!> ../../../docs_src/security/tutorial004_py310.py!}
+    ```
 
 ## Update the dependencies
 
@@ -156,9 +172,17 @@ Decode the received token, verify it, and return the current user.
 
 If the token is invalid, return an HTTP error right away.
 
-```Python hl_lines="89-106"
-{!../../../docs_src/security/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="89-106"
+    {!> ../../../docs_src/security/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="88-105"
+    {!> ../../../docs_src/security/tutorial004_py310.py!}
+    ```
 
 ## Update the `/token` *path operation*
 
@@ -166,9 +190,17 @@ Create a `timedelta` with the expiration time of the token.
 
 Create a real JWT access token and return it.
 
-```Python hl_lines="115-128"
-{!../../../docs_src/security/tutorial004.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="115-128"
+    {!> ../../../docs_src/security/tutorial004.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="114-127"
+    {!> ../../../docs_src/security/tutorial004_py310.py!}
+    ```
 
 ### Technical details about the JWT "subject" `sub`
 

docs/en/docs/tutorial/security/simple-oauth2.md

@@ -49,9 +49,17 @@ Now let's use the utilities provided by **FastAPI** to handle this.
 
 First, import `OAuth2PasswordRequestForm`, and use it as a dependency with `Depends` in the *path operation* for `/token`:
 
-```Python hl_lines="4  76"
-{!../../../docs_src/security/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="4  76"
+    {!> ../../../docs_src/security/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="2  74"
+    {!> ../../../docs_src/security/tutorial003_py310.py!}
+    ```
 
 `OAuth2PasswordRequestForm` is a class dependency that declares a form body with:
 
@@ -90,9 +98,17 @@ If there is no such user, we return an error saying "incorrect username or passw
 
 For the error, we use the exception `HTTPException`:
 
-```Python hl_lines="3  77-79"
-{!../../../docs_src/security/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3  77-79"
+    {!> ../../../docs_src/security/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1  75-77"
+    {!> ../../../docs_src/security/tutorial003_py310.py!}
+    ```
 
 ### Check the password
 
@@ -118,9 +134,17 @@ If your database is stolen, the thief won't have your users' plaintext passwords
 
 So, the thief won't be able to try to use those same passwords in another system (as many users use the same password everywhere, this would be dangerous).
 
-```Python hl_lines="80-83"
-{!../../../docs_src/security/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="80-83"
+    {!> ../../../docs_src/security/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="78-81"
+    {!> ../../../docs_src/security/tutorial003_py310.py!}
+    ```
 
 #### About `**user_dict`
 
@@ -156,9 +180,17 @@ For this simple example, we are going to just be completely insecure and return
 
     But for now, let's focus on the specific details we need.
 
-```Python hl_lines="85"
-{!../../../docs_src/security/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="85"
+    {!> ../../../docs_src/security/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="83"
+    {!> ../../../docs_src/security/tutorial003_py310.py!}
+    ```
 
 !!! tip
     By the spec, you should return a JSON with an `access_token` and a `token_type`, the same as in this example.
@@ -181,9 +213,17 @@ Both of these dependencies will just return an HTTP error if the user doesn't ex
 
 So, in our endpoint, we will only get a user if the user exists, was correctly authenticated, and is active:
 
-```Python hl_lines="58-67  69-72  90"
-{!../../../docs_src/security/tutorial003.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="58-66  69-72  90"
+    {!> ../../../docs_src/security/tutorial003.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="55-64  67-70  88"
+    {!> ../../../docs_src/security/tutorial003_py310.py!}
+    ```
 
 !!! info
     The additional header `WWW-Authenticate` with value `Bearer` we are returning here is also part of the spec.

docs/en/docs/tutorial/sql-databases.md

@@ -248,9 +248,23 @@ So, the user will also have a `password` when creating it.
 
 But for security, the `password` won't be in other Pydantic *models*, for example, it won't be sent from the API when reading a user.
 
-```Python hl_lines="3  6-8  11-12  23-24  27-28"
-{!../../../docs_src/sql_databases/sql_app/schemas.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="3  6-8  11-12  23-24  27-28"
+    {!> ../../../docs_src/sql_databases/sql_app/schemas.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="3  6-8  11-12  23-24  27-28"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/schemas.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="1  4-6  9-10  21-22  25-26"
+    {!> ../../../docs_src/sql_databases/sql_app_py310/schemas.py!}
+    ```
 
 #### SQLAlchemy style and Pydantic style
 
@@ -278,9 +292,23 @@ The same way, when reading a user, we can now declare that `items` will contain
 
 Not only the IDs of those items, but all the data that we defined in the Pydantic *model* for reading items: `Item`.
 
-```Python hl_lines="15-17  31-34"
-{!../../../docs_src/sql_databases/sql_app/schemas.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="15-17  31-34"
+    {!> ../../../docs_src/sql_databases/sql_app/schemas.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="15-17  31-34"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/schemas.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="13-15  29-32"
+    {!> ../../../docs_src/sql_databases/sql_app_py310/schemas.py!}
+    ```
 
 !!! tip
     Notice that the `User`, the Pydantic *model* that will be used when reading a user (returning it from the API) doesn't include the `password`.
@@ -293,9 +321,23 @@ This <a href="https://pydantic-docs.helpmanual.io/#config" class="external-link"
 
 In the `Config` class, set the attribute `orm_mode = True`.
 
-```Python hl_lines="15  19-20  31  36-37"
-{!../../../docs_src/sql_databases/sql_app/schemas.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="15  19-20  31  36-37"
+    {!> ../../../docs_src/sql_databases/sql_app/schemas.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="15  19-20  31  36-37"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/schemas.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python hl_lines="13  17-18  29  34-35"
+    {!> ../../../docs_src/sql_databases/sql_app_py310/schemas.py!}
+    ```
 
 !!! tip
     Notice it's assigning a value with `=`, like:
@@ -425,9 +467,17 @@ And now in the file `sql_app/main.py` let's integrate and use all the other part
 
 In a very simplistic way create the database tables:
 
-```Python hl_lines="9"
-{!../../../docs_src/sql_databases/sql_app/main.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="9"
+    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="7"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/main.py!}
+    ```
 
 #### Alembic Note
 
@@ -451,9 +501,17 @@ For that, we will create a new dependency with `yield`, as explained before in t
 
 Our dependency will create a new SQLAlchemy `SessionLocal` that will be used in a single request, and then close it once the request is finished.
 
-```Python hl_lines="15-20"
-{!../../../docs_src/sql_databases/sql_app/main.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="15-20"
+    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="13-18"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/main.py!}
+    ```
 
 !!! info
     We put the creation of the `SessionLocal()` and handling of the requests in a `try` block.
@@ -468,9 +526,17 @@ And then, when using the dependency in a *path operation function*, we declare i
 
 This will then give us better editor support inside the *path operation function*, because the editor will know that the `db` parameter is of type `Session`:
 
-```Python hl_lines="24  32  38  47  53"
-{!../../../docs_src/sql_databases/sql_app/main.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="24  32  38  47  53"
+    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="22  30  36  45  51"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/main.py!}
+    ```
 
 !!! info "Technical Details"
     The parameter `db` is actually of type `SessionLocal`, but this class (created with `sessionmaker()`) is a "proxy" of a SQLAlchemy `Session`, so, the editor doesn't really know what methods are provided.
@@ -481,9 +547,17 @@ This will then give us better editor support inside the *path operation function
 
 Now, finally, here's the standard **FastAPI** *path operations* code.
 
-```Python hl_lines="23-28  31-34  37-42  45-49  52-55"
-{!../../../docs_src/sql_databases/sql_app/main.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="23-28  31-34  37-42  45-49  52-55"
+    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="21-26  29-32  35-40  43-47  50-53"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/main.py!}
+    ```
 
 We are creating the database session before each request in the dependency with `yield`, and then closing it afterwards.
 
@@ -566,9 +640,23 @@ For example, in a background task worker with <a href="https://docs.celeryprojec
 
 * `sql_app/schemas.py`:
 
-```Python
-{!../../../docs_src/sql_databases/sql_app/schemas.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python
+    {!> ../../../docs_src/sql_databases/sql_app/schemas.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python
+    {!> ../../../docs_src/sql_databases/sql_app_py39/schemas.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python
+    {!> ../../../docs_src/sql_databases/sql_app_py310/schemas.py!}
+    ```
 
 * `sql_app/crud.py`:
 
@@ -578,9 +666,17 @@ For example, in a background task worker with <a href="https://docs.celeryprojec
 
 * `sql_app/main.py`:
 
-```Python
-{!../../../docs_src/sql_databases/sql_app/main.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python
+    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python
+    {!> ../../../docs_src/sql_databases/sql_app_py39/main.py!}
+    ```
 
 ## Check it
 
@@ -629,9 +725,17 @@ A "middleware" is basically a function that is always executed for each request,
 
 The middleware we'll add (just a function) will create a new SQLAlchemy `SessionLocal` for each request, add it to the request and then close it once the request is finished.
 
-```Python hl_lines="14-22"
-{!../../../docs_src/sql_databases/sql_app/alt_main.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python hl_lines="14-22"
+    {!> ../../../docs_src/sql_databases/sql_app/alt_main.py!}
+    ```
+
+=== "Python 3.9 and above"
+
+    ```Python hl_lines="12-20"
+    {!> ../../../docs_src/sql_databases/sql_app_py39/alt_main.py!}
+    ```
 
 !!! info
     We put the creation of the `SessionLocal()` and handling of the requests in a `try` block.

docs/en/docs/tutorial/testing.md

@@ -65,7 +65,7 @@ Now let's extend this example and add more details to see how to test different
 
 ### Extended **FastAPI** app file
 
-Let's say you have a file `main_b.py` with your **FastAPI** app.
+Let's say that now the file `main.py` with your **FastAPI** app has some other **path operations**.
 
 It has a `GET` operation that could return an error.
 
@@ -73,16 +73,24 @@ It has a `POST` operation that could return several errors.
 
 Both *path operations* require an `X-Token` header.
 
-```Python
-{!../../../docs_src/app_testing/main_b.py!}
-```
+=== "Python 3.6 and above"
+
+    ```Python
+    {!> ../../../docs_src/app_testing/app_b/main.py!}
+    ```
+
+=== "Python 3.10 and above"
+
+    ```Python
+    {!> ../../../docs_src/app_testing/app_b_py310/main.py!}
+    ```
 
 ### Extended testing file
 
-You could then have a `test_main_b.py`, the same as before, with the extended tests:
+You could then update `test_main.py` with the extended tests:
 
 ```Python
-{!../../../docs_src/app_testing/test_main_b.py!}
+{!> ../../../docs_src/app_testing/app_b/test_main.py!}
 ```
 
 Whenever you need the client to pass information in the request and you don't know how to, you can search (Google) how to do it in `requests`.

docs/en/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -176,8 +173,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/en/overrides/main.html

@@ -46,6 +46,18 @@
         <img class="sponsor-image" src="/img/sponsors/cryptapi-banner.svg" />
       </a>
     </div>
+    <div class="item">
+      <a title="Dropbase - seamlessly collect, clean, and centralize data." style="display: block; position: relative;" href="https://www.dropbase.io/careers" target="_blank">
+        <span class="sponsor-badge">sponsor</span>
+        <img class="sponsor-image" src="/img/sponsors/dropbase-banner.svg" />
+      </a>
+    </div>
+    <div class="item">
+      <a title="https://striveworks.us/careers" style="display: block; position: relative;" href="https://striveworks.us/careers?utm_source=fastapi&utm_medium=small_banner&utm_campaign=feb_march#openings" target="_blank">
+        <span class="sponsor-badge">sponsor</span>
+        <img class="sponsor-image" src="/img/sponsors/striveworks-banner.png" />
+      </a>
+    </div>
   </div>
 </div>
 {% endblock %}

docs/es/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -80,8 +77,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/fr/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -85,8 +82,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/id/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/it/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/ja/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -110,8 +107,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/ko/docs/index.md

@@ -35,7 +35,7 @@ FastAPI는 현대적이고, 빠르며(고성능), 파이썬 표준 타입 힌트
 * **직관적**: 훌륭한 편집기 지원. 모든 곳에서 <abbr title="also known as auto-complete, autocompletion, IntelliSense">자동완성</abbr>. 적은 디버깅 시간.
 * **쉬움**: 쉽게 사용하고 배우도록 설계. 적은 문서 읽기 시간.
 * **짧음**: 코드 중복 최소화. 각 매개변수 선언의 여러 기능. 적은 버그.
-* **견고함**: 준비된 프로덕션 용 코드를 얻으세요. 자동 대화형 문서와 함께.
+* **견고함**: 준비된 프로덕션 용 코드를 얻으십시오. 자동 대화형 문서와 함께.
 * **표준 기반**: API에 대한 (완전히 호환되는) 개방형 표준 기반: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (이전에 Swagger로 알려졌던) 및 <a href="http://json-schema.org/" class="external-link" target="_blank">JSON 스키마</a>.
 
 <small>* 내부 개발팀의 프로덕션 애플리케이션을 빌드한 테스트에 근거한 측정</small>
@@ -89,9 +89,9 @@ FastAPI는 현대적이고, 빠르며(고성능), 파이썬 표준 타입 힌트
 
 ---
 
-"_REST API를 만들기 위해 **현대적인 프레임워크**를 찾고 있다면 **FastAPI**를 확인해 보세요. [...] 빠르고, 쓰기 쉽고, 배우기도 쉽습니다 [...]_"
+"_REST API를 만들기 위해 **현대적인 프레임워크**를 찾고 있다면 **FastAPI**를 확인해 보십시오. [...] 빠르고, 쓰기 쉽고, 배우기도 쉽습니다 [...]_"
 
-"_우리 **API**를 **FastAPI**로 바꿨습니다  [...] 아마 여러분도 좋아하실 겁니다 [...]_"
+"_우리 **API**를 **FastAPI**로 바꿨습니다  [...] 아마 여러분도 좋아하실 것입니다 [...]_"
 
 <div style="text-align: right; margin-right: 10%;">Ines Montani - Matthew Honnibal - <strong><a href="https://explosion.ai" target="_blank">Explosion AI</a> 설립자 - <a href="https://spacy.io" target="_blank">spaCy</a> 제작자</strong> <a href="https://twitter.com/_inesmontani/status/1144173225322143744" target="_blank"><small>(ref)</small></a> - <a href="https://twitter.com/honnibal/status/1144031421859655680" target="_blank"><small>(ref)</small></a></div>
 
@@ -193,7 +193,7 @@ async def read_item(item_id: int, q: Optional[str] = None):
 
 ### 실행하기
 
-서버를 실행하세요:
+서버를 실행하십시오:
 
 <div class="termy">
 
@@ -239,7 +239,7 @@ INFO:     Application startup complete.
 
 ### 대화형 API 문서
 
-이제 <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>로 가보세요.
+이제 <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>로 가보십시오.
 
 자동 대화형 API 문서를 볼 수 있습니다 (<a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a> 제공):
 
@@ -388,7 +388,7 @@ item: Item
 
 우리는 그저 수박 겉핡기만 했을 뿐인데 여러분은 벌써 어떻게 작동하는지 알고 있습니다.
 
-다음 줄을 바꿔보세요:
+다음 줄을 바꿔보십시오:
 
 ```Python
     return {"item_name": item.name, "item_id": item_id}
@@ -447,7 +447,7 @@ Starlette이 사용하는:
 * <a href="http://jinja.pocoo.org" target="_blank"><code>jinja2</code></a> - 기본 템플릿 설정을 사용하려면 필요.
 * <a href="https://andrew-d.github.io/python-multipart/" target="_blank"><code>python-multipart</code></a> - `request.form()`과 함께 <abbr title="HTTP 요청에서 파이썬 데이터로 가는 문자열 변환">"parsing"</abbr>의 지원을 원하면 필요.
 * <a href="https://pythonhosted.org/itsdangerous/" target="_blank"><code>itsdangerous</code></a> - `SessionMiddleware` 지원을 위해 필요.
-* <a href="https://pyyaml.org/wiki/PyYAMLDocumentation" target="_blank"><code>pyyaml</code></a> - Starlette의 `SchemaGenerator` 지원을 위해 필요 (FastAPI와 쓸때는 필요가 없을 겁니다).
+* <a href="https://pyyaml.org/wiki/PyYAMLDocumentation" target="_blank"><code>pyyaml</code></a> - Starlette의 `SchemaGenerator` 지원을 위해 필요 (FastAPI와 쓸때는 필요 없을 것입니다).
 * <a href="https://graphene-python.org/" target="_blank"><code>graphene</code></a> - `GraphQLApp` 지원을 위해 필요.
 * <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - `UJSONResponse`를 사용하려면 필요.
 

docs/ko/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -80,8 +77,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/pl/docs/index.md

@@ -1,12 +1,8 @@
-
-{!../../../docs/missing-translation.md!}
-
-
 <p align="center">
   <a href="https://fastapi.tiangolo.com"><img src="https://fastapi.tiangolo.com/img/logo-margin/logo-teal.png" alt="FastAPI"></a>
 </p>
 <p align="center">
-    <em>FastAPI framework, high performance, easy to learn, fast to code, ready for production</em>
+    <em>FastAPI to szybki, prosty w nauce i gotowy do użycia w produkcji framework</em>
 </p>
 <p align="center">
 <a href="https://github.com/tiangolo/fastapi/actions?query=workflow%3ATest" target="_blank">
@@ -22,29 +18,28 @@
 
 ---
 
-**Documentation**: <a href="https://fastapi.tiangolo.com" target="_blank">https://fastapi.tiangolo.com</a>
+**Dokumentacja**: <a href="https://fastapi.tiangolo.com" target="_blank">https://fastapi.tiangolo.com</a>
 
-**Source Code**: <a href="https://github.com/tiangolo/fastapi" target="_blank">https://github.com/tiangolo/fastapi</a>
+**Kod żródłowy**: <a href="https://github.com/tiangolo/fastapi" target="_blank">https://github.com/tiangolo/fastapi</a>
 
 ---
 
-FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
+FastAPI to nowoczesny, wydajny framework webowy do budowania API z użyciem Pythona 3.6+ bazujący na standardowym typowaniu Pythona.
 
-The key features are:
+Kluczowe cechy:
 
-* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
+* **Wydajność**: FastAPI jest bardzo wydajny, na równi z **NodeJS** oraz **Go** (dzięki Starlette i Pydantic). [Jeden z najszybszych dostępnych frameworków Pythonowych](#wydajnosc).
+* **Szybkość kodowania**: Przyśpiesza szybkość pisania nowych funkcjonalności o około 200% do 300%. *
+* **Mniejsza ilość błędów**: Zmniejsza ilość ludzkich (dewelopera) błędy o około 40%. *
+* **Intuicyjność**: Wspaniałe wsparcie dla edytorów kodu. Dostępne wszędzie <abbr title="znane jako auto-complete, autocompletion, IntelliSense">automatyczne uzupełnianie</abbr> kodu. Krótszy czas debugowania.
+* **Łatwość**: Zaprojektowany by być prosty i łatwy do nauczenia. Mniej czasu spędzonego na czytanie dokumentacji.
+* **Kompaktowość**: Minimalizacja powtarzającego się kodu. Wiele funkcjonalności dla każdej deklaracji parametru. Mniej błędów.
+* **Solidność**: Kod gotowy dla środowiska produkcyjnego. Wraz z automatyczną interaktywną dokumentacją.
+* **Bazujący na standardach**: Oparty na (i w pełni kompatybilny z) otwartych standardach API: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (wcześniej znane jako Swagger) oraz <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.
 
-* **Fast to code**: Increase the speed to develop features by about 200% to 300%. *
-* **Fewer bugs**: Reduce about 40% of human (developer) induced errors. *
-* **Intuitive**: Great editor support. <abbr title="also known as auto-complete, autocompletion, IntelliSense">Completion</abbr> everywhere. Less time debugging.
-* **Easy**: Designed to be easy to use and learn. Less time reading docs.
-* **Short**: Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs.
-* **Robust**: Get production-ready code. With automatic interactive documentation.
-* **Standards-based**: Based on (and fully compatible with) the open standards for APIs: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (previously known as Swagger) and <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.
+<small>* oszacowania bazowane na testach wykonanych przez wewnętrzny zespół deweloperów, budujących aplikacie używane na środowisku produkcyjnym.</small>
 
-<small>* estimation based on tests on an internal development team, building production applications.</small>
-
-## Sponsors
+## Sponsorzy
 
 <!-- sponsors -->
 
@@ -59,9 +54,9 @@ The key features are:
 
 <!-- /sponsors -->
 
-<a href="https://fastapi.tiangolo.com/fastapi-people/#sponsors" class="external-link" target="_blank">Other sponsors</a>
+<a href="https://fastapi.tiangolo.com/fastapi-people/#sponsors" class="external-link" target="_blank">Inni sponsorzy</a>
 
-## Opinions
+## Opinie
 
 "_[...] I'm using **FastAPI** a ton these days. [...] I'm actually planning to use it for all of my team's **ML services at Microsoft**. Some of them are getting integrated into the core **Windows** product and some **Office** products._"
 
@@ -101,24 +96,24 @@ The key features are:
 
 ---
 
-## **Typer**, the FastAPI of CLIs
+## **Typer**, FastAPI aplikacji konsolowych
 
 <a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>
 
-If you are building a <abbr title="Command Line Interface">CLI</abbr> app to be used in the terminal instead of a web API, check out <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>.
+Jeżeli tworzysz aplikacje <abbr title="aplikacja z interfejsem konsolowym">CLI</abbr>, która ma być używana w terminalu zamiast API, sprawdź <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>.
 
-**Typer** is FastAPI's little sibling. And it's intended to be the **FastAPI of CLIs**. ⌨️ 🚀
+**Typer** to młodsze rodzeństwo FastAPI. Jego celem jest pozostanie **FastAPI aplikacji konsolowych** . ⌨️ 🚀
 
-## Requirements
+## Wymagania
 
 Python 3.6+
 
-FastAPI stands on the shoulders of giants:
+FastAPI oparty jest na:
 
-* <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> for the web parts.
-* <a href="https://pydantic-docs.helpmanual.io/" class="external-link" target="_blank">Pydantic</a> for the data parts.
+* <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> dla części webowej.
+* <a href="https://pydantic-docs.helpmanual.io/" class="external-link" target="_blank">Pydantic</a> dla części obsługujących dane.
 
-## Installation
+## Instalacja
 
 <div class="termy">
 
@@ -130,7 +125,7 @@ $ pip install fastapi
 
 </div>
 
-You will also need an ASGI server, for production such as <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> or <a href="https://gitlab.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>.
+Na serwerze produkcyjnym będziesz także potrzebował serwera ASGI, np. <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> lub <a href="https://gitlab.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>.
 
 <div class="termy">
 
@@ -142,11 +137,11 @@ $ pip install uvicorn[standard]
 
 </div>
 
-## Example
+## Przykład
 
-### Create it
+### Stwórz
 
-* Create a file `main.py` with:
+* Utwórz plik o nazwie `main.py` z:
 
 ```Python
 from typing import Optional
@@ -167,9 +162,9 @@ def read_item(item_id: int, q: Optional[str] = None):
 ```
 
 <details markdown="1">
-<summary>Or use <code>async def</code>...</summary>
+<summary>Albo użyj <code>async def</code>...</summary>
 
-If your code uses `async` / `await`, use `async def`:
+Jeżeli twój kod korzysta z `async` / `await`, użyj `async def`:
 
 ```Python hl_lines="9  14"
 from typing import Optional
@@ -189,15 +184,15 @@ async def read_item(item_id: int, q: Optional[str] = None):
     return {"item_id": item_id, "q": q}
 ```
 
-**Note**:
+**Przypis**:
 
-If you don't know, check the _"In a hurry?"_ section about <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` and `await` in the docs</a>.
+Jeżeli nie znasz, sprawdź sekcję _"In a hurry?"_ o <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` i `await` w dokumentacji</a>.
 
 </details>
 
-### Run it
+### Uruchom
 
-Run the server with:
+Uruchom serwer używając:
 
 <div class="termy">
 
@@ -214,54 +209,53 @@ INFO:     Application startup complete.
 </div>
 
 <details markdown="1">
-<summary>About the command <code>uvicorn main:app --reload</code>...</summary>
+<summary>O komendzie <code>uvicorn main:app --reload</code>...</summary>
+Komenda `uvicorn main:app` odnosi się do:
 
-The command `uvicorn main:app` refers to:
-
-* `main`: the file `main.py` (the Python "module").
-* `app`: the object created inside of `main.py` with the line `app = FastAPI()`.
-* `--reload`: make the server restart after code changes. Only do this for development.
+* `main`: plik `main.py` ("moduł" w Pythonie).
+* `app`: obiekt stworzony w `main.py` w lini `app = FastAPI()`.
+* `--reload`: spraw by serwer resetował się po każdej zmianie w kodzie. Używaj tego tylko w środowisku deweloperskim.
 
 </details>
 
-### Check it
+### Wypróbuj
 
-Open your browser at <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.
+Otwórz link <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a> w przeglądarce.
 
-You will see the JSON response as:
+Zobaczysz następującą odpowiedź JSON:
 
 ```JSON
 {"item_id": 5, "q": "somequery"}
 ```
 
-You already created an API that:
+Właśnie stworzyłeś API które:
 
-* Receives HTTP requests in the _paths_ `/` and `/items/{item_id}`.
-* Both _paths_ take `GET` <em>operations</em> (also known as HTTP _methods_).
-* The _path_ `/items/{item_id}` has a _path parameter_ `item_id` that should be an `int`.
-* The _path_ `/items/{item_id}` has an optional `str` _query parameter_ `q`.
+* Otrzymuje żądania HTTP w _ścieżce_ `/` i `/items/{item_id}`.
+* Obie _ścieżki_ używają <em>operacji</em> `GET` (znane także jako _metody_ HTTP).
+* _Ścieżka_ `/items/{item_id}` ma _parametr ścieżki_ `item_id` który powinien być obiektem typu `int`.
+* _Ścieżka_ `/items/{item_id}` ma opcjonalny _parametr zapytania_ typu `str` o nazwie `q`.
 
-### Interactive API docs
+### Interaktywna dokumentacja API
 
-Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.
+Otwórz teraz stronę <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.
 
-You will see the automatic interactive API documentation (provided by <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a>):
+Zobaczysz automatyczną interaktywną dokumentację API (dostarczoną z pomocą <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a>):
 
 ![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)
 
-### Alternative API docs
+### Alternatywna dokumentacja API
 
-And now, go to <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.
+Otwórz teraz <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.
 
-You will see the alternative automatic documentation (provided by <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):
+Zobaczysz alternatywną, lecz wciąż automatyczną dokumentację (wygenerowaną z pomocą <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):
 
 ![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)
 
-## Example upgrade
+## Aktualizacja przykładu
 
-Now modify the file `main.py` to receive a body from a `PUT` request.
+Zmodyfikuj teraz plik `main.py`, aby otrzmywał treść (body) żądania `PUT`.
 
-Declare the body using standard Python types, thanks to Pydantic.
+Zadeklaruj treść żądania, używając standardowych typów w Pythonie dzięki Pydantic.
 
 ```Python hl_lines="4  9-12  25-27"
 from typing import Optional
@@ -293,175 +287,175 @@ def update_item(item_id: int, item: Item):
     return {"item_name": item.name, "item_id": item_id}
 ```
 
-The server should reload automatically (because you added `--reload` to the `uvicorn` command above).
+Serwer powinien przeładować się automatycznie (ponieważ dodałeś `--reload` do komendy `uvicorn` powyżej).
 
-### Interactive API docs upgrade
+### Zaktualizowana interaktywna dokumentacja API
 
-Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.
+Wejdź teraz na <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.
 
-* The interactive API documentation will be automatically updated, including the new body:
+* Interaktywna dokumentacja API zaktualizuje sie automatycznie, także z nową treścią żądania (body):
 
 ![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)
 
-* Click on the button "Try it out", it allows you to fill the parameters and directly interact with the API:
+* Kliknij przycisk "Try it out" (wypróbuj), pozwoli Ci to wypełnić parametry i bezpośrednio użyć API:
 
 ![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)
 
-* Then click on the "Execute" button, the user interface will communicate with your API, send the parameters, get the results and show them on the screen:
+* Kliknij potem przycisk "Execute" (wykonaj), interfejs użytkownika połączy się z API, wyśle parametry, otrzyma odpowiedź i wyświetli ją na ekranie:
 
 ![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)
 
-### Alternative API docs upgrade
+### Zaktualizowana alternatywna dokumentacja API
 
-And now, go to <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.
+Otwórz teraz <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.
 
-* The alternative documentation will also reflect the new query parameter and body:
+* Alternatywna dokumentacja również pokaże zaktualizowane parametry i treść żądania (body):
 
 ![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)
 
-### Recap
+### Podsumowanie
 
-In summary, you declare **once** the types of parameters, body, etc. as function parameters. 
+Podsumowując, musiałeś zadeklarować typy parametrów, treści żądania (body) itp. tylko **raz**, i są one dostępne jako parametry funkcji.
 
-You do that with standard modern Python types.
+Robisz to tak samo jak ze standardowymi typami w Pythonie.
 
-You don't have to learn a new syntax, the methods or classes of a specific library, etc.
+Nie musisz sie uczyć żadnej nowej składni, metod lub klas ze specyficznych bibliotek itp.
 
-Just standard **Python 3.6+**.
+Po prostu standardowy **Python 3.6+**.
 
-For example, for an `int`:
+Na przykład, dla danych typu `int`:
 
 ```Python
 item_id: int
 ```
 
-or for a more complex `Item` model:
+albo dla bardziej złożonego obiektu `Item`:
 
 ```Python
 item: Item
 ```
 
-...and with that single declaration you get:
+...i z pojedyńczą deklaracją otrzymujesz:
 
-* Editor support, including:
-    * Completion.
-    * Type checks.
-* Validation of data:
-    * Automatic and clear errors when the data is invalid.
-    * Validation even for deeply nested JSON objects.
-* <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of input data: coming from the network to Python data and types. Reading from:
+* Wsparcie edytorów kodu, wliczając:
+    * Auto-uzupełnianie.
+    * Sprawdzanie typów.
+* Walidacja danych:
+    * Automatyczne i przejrzyste błędy gdy dane są niepoprawne.
+    * Walidacja nawet dla głęboko zagnieżdżonych obiektów JSON.
+* <abbr title="znane również jako: serializacja, przetwarzanie, marshalling">Konwersja</abbr> danych wejściowych: przychodzących z sieci na Pythonowe typy. Pozwala na przetwarzanie danych:
     * JSON.
-    * Path parameters.
-    * Query parameters.
-    * Cookies.
-    * Headers.
-    * Forms.
-    * Files.
-* <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of output data: converting from Python data and types to network data (as JSON):
-    * Convert Python types (`str`, `int`, `float`, `bool`, `list`, etc).
-    * `datetime` objects.
-    * `UUID` objects.
-    * Database models.
-    * ...and many more.
-* Automatic interactive API documentation, including 2 alternative user interfaces:
+    * Parametrów ścieżki.
+    * Parametrów zapytania.
+    * Dane cookies.
+    * Dane nagłówków (headers).
+    * Formularze.
+    * Pliki.
+* <abbr title="znane również jako: serializacja, przetwarzanie, marshalling">Konwersja</abbr> danych wyjściowych: wychodzących z Pythona do sieci (jako JSON):
+    * Przetwarzanie Pythonowych typów (`str`, `int`, `float`, `bool`, `list`, itp).
+    * Obiekty `datetime`.
+    * Obiekty `UUID`.
+    * Modele baz danych.
+    * ...i wiele więcej.
+* Automatyczne interaktywne dokumentacje API, wliczając 2 alternatywne interfejsy użytkownika:
     * Swagger UI.
     * ReDoc.
 
 ---
 
-Coming back to the previous code example, **FastAPI** will:
+Wracając do poprzedniego przykładu, **FastAPI** :
 
-* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.
-* Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
-    * If it is not, the client will see a useful, clear error.
-* Check if there is an optional query parameter named `q` (as in `http://127.0.0.1:8000/items/foo?q=somequery`) for `GET` requests.
-    * As the `q` parameter is declared with `= None`, it is optional.
-    * Without the `None` it would be required (as is the body in the case with `PUT`).
-* For `PUT` requests to `/items/{item_id}`, Read the body as JSON:
-    * Check that it has a required attribute `name` that should be a `str`. 
-    * Check that it has a required attribute `price` that has to be a `float`.
-    * Check that it has an optional attribute `is_offer`, that should be a `bool`, if present.
-    * All this would also work for deeply nested JSON objects.
-* Convert from and to JSON automatically.
-* Document everything with OpenAPI, that can be used by:
-    * Interactive documentation systems.
-    * Automatic client code generation systems, for many languages.
-* Provide 2 interactive documentation web interfaces directly.
+* Potwierdzi, że w ścieżce jest `item_id` dla żądań `GET` i `PUT`.
+* Potwierdzi, że `item_id` jest typu `int` dla żądań `GET` i `PUT`.
+    * Jeżeli nie jest, odbiorca zobaczy przydatną, przejrzystą wiadomość z błędem.
+* Sprawdzi czy w ścieżce jest opcjonalny parametr zapytania `q` (np. `http://127.0.0.1:8000/items/foo?q=somequery`) dla żądania `GET`.
+    * Jako że parametr `q` jest zadeklarowany jako `= None`, jest on opcjonalny.
+    * Gdyby tego `None` nie było, parametr ten byłby wymagany (tak jak treść żądania w żądaniu `PUT`).
+* Dla żądania `PUT` z ścieżką `/items/{item_id}`, odczyta treść żądania jako JSON:
+    * Sprawdzi czy posiada wymagany atrybut `name`, który powinien być typu `str`.
+    * Sprawdzi czy posiada wymagany atrybut `price`, który musi być typu `float`.
+    * Sprawdzi czy posiada opcjonalny atrybut `is_offer`, który (jeżeli obecny) powinien być typu `bool`.
+    * To wszystko będzie również działać dla głęboko zagnieżdżonych obiektów JSON.
+* Automatycznie konwertuje z i do JSON.
+* Dokumentuje wszystko w OpenAPI, które może być używane przez:
+    * Interaktywne systemy dokumentacji.
+    * Systemy automatycznego generowania kodu klienckiego, dla wielu języków.
+* Dostarczy bezpośrednio 2 interaktywne dokumentacje webowe.
 
 ---
 
-We just scratched the surface, but you already get the idea of how it all works.
+To dopiero początek, ale już masz mniej-więcej pojęcie jak to wszystko działa.
 
-Try changing the line with:
+Spróbuj zmienić linijkę:
 
 ```Python
     return {"item_name": item.name, "item_id": item_id}
 ```
 
-...from:
+...z:
 
 ```Python
         ... "item_name": item.name ...
 ```
 
-...to:
+...na:
 
 ```Python
         ... "item_price": item.price ...
 ```
 
-...and see how your editor will auto-complete the attributes and know their types:
+...i zobacz jak edytor kodu automatycznie uzupełni atrybuty i będzie znał ich typy:
 
 ![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)
 
-For a more complete example including more features, see the <a href="https://fastapi.tiangolo.com/tutorial/">Tutorial - User Guide</a>.
+Dla bardziej kompletnych przykładów posiadających więcej funkcjonalności, zobacz <a href="https://fastapi.tiangolo.com/tutorial/">Tutorial - User Guide</a>.
 
-**Spoiler alert**: the tutorial - user guide includes:
+**Uwaga Spoiler**: tutorial - user guide zawiera:
 
-* Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
-* How to set **validation constraints** as `maximum_length` or `regex`.
-* A very powerful and easy to use **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>** system.
-* Security and authentication, including support for **OAuth2** with **JWT tokens** and **HTTP Basic** auth.
-* More advanced (but equally easy) techniques for declaring **deeply nested JSON models** (thanks to Pydantic).
-* Many extra features (thanks to Starlette) as:
-    * **WebSockets**
+* Deklaracje **parametrów** z innych miejsc takich jak: **nagłówki**, **pliki cookies**, **formularze** i **pliki**.
+* Jak ustawić **ograniczenia walidacyjne** takie jak `maksymalna długość` lub `regex`.
+* Potężny i łatwy w użyciu system **<abbr title="znane jako komponenty, resources, providers, services, injectables">Dependency Injection</abbr>**.
+* Zabezpieczenia i autentykacja, wliczając wsparcie dla **OAuth2** z **tokenami JWT** oraz autoryzacją **HTTP Basic**.
+* Bardziej zaawansowane (ale równie proste) techniki deklarowania **głęboko zagnieżdżonych modeli JSON** (dzięki Pydantic).
+* Wiele dodatkowych funkcji (dzięki Starlette) takie jak:
+    * **WebSockety**
     * **GraphQL**
-    * extremely easy tests based on `requests` and `pytest`
+    * bardzo proste testy bazujące na `requests` oraz `pytest`
     * **CORS**
-    * **Cookie Sessions**
-    * ...and more.
+    * **Sesje cookie**
+    * ...i więcej.
 
-## Performance
+## Wydajność
 
-Independent TechEmpower benchmarks show **FastAPI** applications running under Uvicorn as <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">one of the fastest Python frameworks available</a>, only below Starlette and Uvicorn themselves (used internally by FastAPI). (*)
+Niezależne benchmarki TechEmpower pokazują, że **FastAPI** (uruchomiony na serwerze Uvicorn) <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">jest jednym z najszybszych dostępnych Pythonowych frameworków</a>, zaraz po Starlette i Uvicorn (używanymi wewnątrznie przez FastAPI). (*)
 
-To understand more about it, see the section <a href="https://fastapi.tiangolo.com/benchmarks/" class="internal-link" target="_blank">Benchmarks</a>.
+Aby dowiedzieć się o tym więcej, zobacz sekcję <a href="https://fastapi.tiangolo.com/benchmarks/" class="internal-link" target="_blank">Benchmarks</a>.
 
-## Optional Dependencies
+## Opcjonalne zależności
 
-Used by Pydantic:
+Używane przez Pydantic:
 
-* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - for faster JSON <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>.
-* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email_validator</code></a> - for email validation.
+* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - dla szybszego <abbr title="przetwarzania stringa który przychodzi z żądaniem HTTP na dane używane przez Pythona">"parsowania"</abbr> danych JSON.
+* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email_validator</code></a> - dla walidacji adresów email.
 
-Used by Starlette:
+Używane przez Starlette:
 
-* <a href="https://requests.readthedocs.io" target="_blank"><code>requests</code></a> - Required if you want to use the `TestClient`.
-* <a href="https://github.com/Tinche/aiofiles" target="_blank"><code>aiofiles</code></a> - Required if you want to use `FileResponse` or `StaticFiles`.
-* <a href="https://jinja.palletsprojects.com" target="_blank"><code>jinja2</code></a> - Required if you want to use the default template configuration.
-* <a href="https://andrew-d.github.io/python-multipart/" target="_blank"><code>python-multipart</code></a> - Required if you want to support form <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>, with `request.form()`.
-* <a href="https://pythonhosted.org/itsdangerous/" target="_blank"><code>itsdangerous</code></a> - Required for `SessionMiddleware` support.
-* <a href="https://pyyaml.org/wiki/PyYAMLDocumentation" target="_blank"><code>pyyaml</code></a> - Required for Starlette's `SchemaGenerator` support (you probably don't need it with FastAPI).
-* <a href="https://graphene-python.org/" target="_blank"><code>graphene</code></a> - Required for `GraphQLApp` support.
-* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - Required if you want to use `UJSONResponse`.
+* <a href="https://requests.readthedocs.io" target="_blank"><code>requests</code></a> - Wymagane jeżeli chcesz korzystać z `TestClient`.
+* <a href="https://github.com/Tinche/aiofiles" target="_blank"><code>aiofiles</code></a> - Wymagane jeżeli chcesz korzystać z `FileResponse` albo `StaticFiles`.
+* <a href="https://jinja.palletsprojects.com" target="_blank"><code>jinja2</code></a> - Wymagane jeżeli chcesz używać domyślnej konfiguracji szablonów.
+* <a href="https://andrew-d.github.io/python-multipart/" target="_blank"><code>python-multipart</code></a> - Wymagane jeżelich chcesz wsparcie <abbr title="przetwarzania stringa którzy przychodzi z żądaniem HTTP na dane używane przez Pythona">"parsowania"</abbr> formularzy, używając `request.form()`.
+* <a href="https://pythonhosted.org/itsdangerous/" target="_blank"><code>itsdangerous</code></a> - Wymagany dla wsparcia `SessionMiddleware`.
+* <a href="https://pyyaml.org/wiki/PyYAMLDocumentation" target="_blank"><code>pyyaml</code></a> - Wymagane dla wsparcia `SchemaGenerator` z Starlette (z FastAPI prawdopodobnie tego nie potrzebujesz).
+* <a href="https://graphene-python.org/" target="_blank"><code>graphene</code></a> - Wymagane dla wsparcia `GraphQLApp`.
+* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - Wymagane jeżeli chcesz korzystać z `UJSONResponse`.
 
-Used by FastAPI / Starlette:
+Używane przez FastAPI / Starlette:
 
-* <a href="https://www.uvicorn.org" target="_blank"><code>uvicorn</code></a> - for the server that loads and serves your application.
-* <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> - Required if you want to use `ORJSONResponse`.
+* <a href="https://www.uvicorn.org" target="_blank"><code>uvicorn</code></a> - jako serwer, który ładuje i obsługuje Twoją aplikację.
+* <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> - Wymagane jeżeli chcesz używać `ORJSONResponse`.
 
-You can install all of these with `pip install fastapi[all]`.
+Możesz zainstalować wszystkie te aplikacje przy pomocy `pip install fastapi[all]`.
 
-## License
+## Licencja
 
-This project is licensed under the terms of the MIT license.
+Ten projekt jest na licencji MIT.

docs/pl/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/pt/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -90,8 +87,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/ru/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/sq/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/tr/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -73,8 +70,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/uk/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -70,8 +67,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs/zh/docs/help-fastapi.md

@@ -1,107 +1,149 @@
-# 帮助 FastAPI - 获取帮助
+# 帮助 FastAPI 与求助
 
-你喜欢 **FastAPI** 吗？
+您喜欢 **FastAPI** 吗？
 
-您愿意去帮助 FastAPI，帮助其他用户以及作者吗？
+想帮助 FastAPI？其它用户？还有项目作者？
 
-或者你想要获得有关 **FastAPI** 的帮助？
+或要求助怎么使用 **FastAPI**？
 
-下面是一些非常简单的方式去提供帮助（有些只需单击一两次链接）。
+以下几种帮助的方式都非常简单（有些只需要点击一两下鼠标）。
 
-以及几种获取帮助的途径。
+求助的渠道也很多。
 
-## 在 GitHub 上 Star **FastAPI** 
+## 订阅新闻邮件
 
-你可以在 GitHub 上 "star" FastAPI（点击右上角的 star 按钮）：<a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi</a>。
+您可以订阅 [**FastAPI 和它的小伙伴** 新闻邮件](/newsletter/){.internal-link target=_blank}（不会经常收到）
 
-通过添加 star，其他用户将会更容易发现 FastAPI，并了解已经有许多人认为它有用。
+* FastAPI 及其小伙伴的新闻 🚀
+* 指南 📝
+* 功能 ✨
+* 破坏性更改 🚨
+* 开发技巧 ✅
 
-## Watch GitHub 仓库的版本发布
+## 在推特上关注 FastAPI 
 
-你可以在 GitHub 上 "watch" FastAPI（点击右上角的 watch 按钮）：<a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi</a>。
+<a href="https://twitter.com/fastapi" class="external-link" target="_blank">在 **Twitter** 上关注 @fastapi</a> 获取 **FastAPI** 的最新消息。🐦
 
-这时你可以选择 "Releases only" 选项。
+## 在 GitHub 上为 **FastAPI** 加星
 
-之后，只要有 **FastAPI** 的新版本（包含缺陷修复和新功能）发布，你都会（通过电子邮件）收到通知。
+您可以在 GitHub 上 **Star** FastAPI（只要点击右上角的星星就可以了）： <a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi。</a>⭐️
 
-## 加入聊天室
+**Star** 以后，其它用户就能更容易找到 FastAPI，并了解到已经有其他用户在使用它了。
 
-加入 Gitter 上的聊天室：<a href="https://gitter.im/tiangolo/fastapi" class="external-link" target="_blank">https://gitter.im/tiangolo/fastapi</a>。
+## 关注 GitHub 资源库的版本发布
 
-在这里你可以快速提问、帮助他人、分享想法等。
+您还可以在 GitHub 上 **Watch** FastAPI，（点击右上角的 **Watch** 按钮）<a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi。</a>👀
 
-## 与作者联系
+您可以选择只关注发布（**Releases only**）。
 
-你可以联系 <a href="https://tiangolo.com" class="external-link" target="_blank">我 (Sebastián Ramírez / `tiangolo`)</a> - FastAPI 的作者。
+这样，您就可以（在电子邮件里）接收到 **FastAPI** 新版发布的通知，及时了解 bug 修复与新功能。
 
-你可以：
+## 联系作者
 
-* <a href="https://github.com/tiangolo" class="external-link" target="_blank">在 **GitHub** 上关注我</a>。
-    * 查看我创建的其他的可能对你有帮助的开源项目。
-    * 关注我以了解我创建的新开源项目。
-* <a href="https://twitter.com/tiangolo" class="external-link" target="_blank">在 **Twitter** 上关注我</a>。
-    * 告诉我你是如何使用 FastAPI 的（我很乐意听到）。
-    * 提出问题。
-* <a href="https://www.linkedin.com/in/tiangolo/" class="external-link" target="_blank">在 **Linkedin** 上联系我</a>。
-    * 与我交流。
-    * 认可我的技能或推荐我 :)
-* <a href="https://medium.com/@tiangolo" class="external-link" target="_blank">在 **Medium** 上阅读我写的文章（或关注我）</a>。
-    * 阅读我创建的其他想法，文章和工具。
-    * 关注我以了解我发布的新内容。
+您可以联系项目作者，就是<a href="https://tiangolo.com" class="external-link" target="_blank">我（Sebastián Ramírez / `tiangolo`</a>）。
 
-## 发布和 **FastAPI** 有关的推特
+您可以：
 
-<a href="https://twitter.com/compose/tweet?text=I'm loving FastAPI because... https://github.com/tiangolo/fastapi cc @tiangolo" class="external-link" target="_blank"> 发布和 **FastAPI** 有关的推特</a> 让我和其他人知道你为什么喜欢它。
+* <a href="https://github.com/tiangolo" class="external-link" target="_blank">在 **GitHub** 上关注我</a>
+    * 了解其它我创建的开源项目，或许对您会有帮助
+    * 关注我什么时候创建新的开源项目
+* <a href="https://twitter.com/tiangolo" class="external-link" target="_blank">在 **Twitter** 上关注我</a>
+    * 告诉我您使用 FastAPI（我非常乐意听到这种消息）
+    * 接收我发布公告或新工具的消息
+    * 您还可以关注<a href="https://twitter.com/fastapi" class="external-link" target="_blank">@fastapi on Twitter</a>，这是个独立的账号
+* <a href="https://www.linkedin.com/in/tiangolo/" class="external-link" target="_blank">在**领英**上联系我</a>
+    * 接收我发布公告或新工具的消息（虽然我用 Twitter 比较多）
+* 阅读我在 <a href="https://dev.to/tiangolo" class="external-link" target="_blank">**Dev.to**</a> 或 <a href="https://medium.com/@tiangolo" class="external-link" target="_blank">**Medium**</a> 上的文章，或关注我
+    * 阅读我的其它想法、文章，了解我创建的工具
+    * 关注我，这样就可以随时看到我发布的新文章
 
-## 告诉我你正在如何使用 **FastAPI**
+## Tweet about **FastAPI**
 
-我很乐意听到有关 **FastAPI** 被如何使用、你喜欢它的哪一点、被投入使用的项目/公司等等信息。
+<a href="https://twitter.com/compose/tweet?text=I'm loving @fastapi because... https://github.com/tiangolo/fastapi" class="external-link" target="_blank">Tweet about **FastAPI**</a> 让我和大家知道您为什么喜欢 FastAPI。🎉
 
-你可以通过以下平台让我知道：
-
-* <a href="https://twitter.com/compose/tweet?text=Hey @tiangolo, I'm using FastAPI at..." class="external-link" target="_blank">**Twitter**</a>。
-* <a href="https://www.linkedin.com/in/tiangolo/" class="external-link" target="_blank">**Linkedin**</a>。
-* <a href="https://medium.com/@tiangolo" class="external-link" target="_blank">**Medium**</a>。
+知道有人使用 **FastAPI**，我会很开心，我也想知道您为什么喜欢 FastAPI，以及您在什么项目/哪些公司使用 FastAPI，等等。
 
 ## 为 FastAPI 投票
 
-* <a href="https://www.slant.co/options/34241/~fastapi-review" class="external-link" target="_blank">在 Slant 上为 **FastAPI** 投票</a>。
+* <a href="https://www.slant.co/options/34241/~fastapi-review" class="external-link" target="_blank">在 Slant 上为 **FastAPI** 投票</a>
+* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">在 AlternativeTo 上为 **FastAPI** 投票</a>
 
-## 帮助他人解决 GitHub 的 issues
+## 在 GitHub 上帮助其他人解决问题
 
-你可以查看 <a href="https://github.com/tiangolo/fastapi/issues" class="external-link" target="_blank">已有的 issues</a> 并尝试帮助其他人。
+您可以查看<a href="https://github.com/tiangolo/fastapi/issues" class="external-link" target="_blank">现有 issues</a>，并尝试帮助其他人解决问题，说不定您能解决这些问题呢。🤓
 
-## Watch GitHub 仓库
+如果帮助很多人解决了问题，您就有可能成为 [FastAPI 的官方专家](fastapi-people.md#experts){.internal-link target=_blank}。🎉
 
-你可以在 GitHub 上 "watch" FastAPI（点击右上角的 "watch" 按钮）：<a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi</a>。
+## 监听 GitHub 资源库
 
-如果你选择的是 "Watching" 而不是 "Releases only" 选项，你会在其他人创建了新的 issue 时收到通知。
+您可以在 GitHub 上「监听」FastAPI（点击右上角的 "watch" 按钮）： <a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi</a>. 👀
 
-然后你可以尝试帮助他们解决这些 issue。
+如果您选择 "Watching" 而不是 "Releases only"，有人创建新 Issue 时，您会接收到通知。
 
-## 创建 issue
+然后您就可以尝试并帮助他们解决问题。
 
-你可以在 GitHub 仓库中 <a href="https://github.com/tiangolo/fastapi/issues/new/choose" class="external-link" target="_blank">创建一个新 issue</a> 用来：
+## 创建 Issue
 
-* 报告 bug 或问题。
-* 提议新的特性。
-* 提问。
+您可以在 GitHub 资源库中<a href="https://github.com/tiangolo/fastapi/issues/new/choose" class="external-link" target="_blank">创建 Issue</a>，例如：
 
-## 创建 Pull Request
+* 提出**问题**或**意见**
+* 提出新**特性**建议
 
-你可以 <a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">创建一个 Pull Request</a> 用来：
+**注意**：如果您创建 Issue，我会要求您也要帮助别的用户。😉
 
-* 纠正你在文档中发现的错别字。
-* 添加新的文档内容。
-* 修复已有的 bug 或问题。
-* 添加新的特性。
+## 创建 PR
+
+您可以创建 PR 为源代码做[贡献](contributing.md){.internal-link target=_blank}，例如：
+
+* 修改文档错别字
+* <a href="https://github.com/tiangolo/fastapi/edit/master/docs/en/data/external_links.yml" class="external-link" target="_blank">编辑这个文件</a>，分享 FastAPI 的文章、视频、博客，不论是您自己的，还是您看到的都成
+    * 注意，添加的链接要放在对应区块的开头
+* [翻译文档](contributing.md#translations){.internal-link target=_blank}
+    * 审阅别人翻译的文档
+* 添加新的文档内容
+* 修复现有问题/Bug
+* 添加新功能
+
+## 加入聊天
+
+快加入 👥 <a href="https://discord.gg/VQjSZaeJmf" class="external-link" target="_blank">Discord 聊天服务器</a> 👥 和 FastAPI 社区里的小伙伴一起哈皮吧。
+
+!!! tip "提示"
+
+    如有问题，请在 <a href="https://github.com/tiangolo/fastapi/issues/new/choose" class="external-link" target="_blank">GitHub Issues</a> 里提问，在这里更容易得到 [FastAPI 专家](fastapi-people.md#experts){.internal-link target=_blank}的帮助。
+    
+    聊天室仅供闲聊。
+
+我们之前还使用过 <a href="https://gitter.im/tiangolo/fastapi" class="external-link" target="_blank">Gitter chat</a>，但它不支持频道等高级功能，聊天也比较麻烦，所以现在推荐使用 Discord。
+
+### 别在聊天室里提问
+
+注意，聊天室更倾向于“闲聊”，经常有人会提出一些笼统得让人难以回答的问题，所以在这里提问一般没人回答。
+
+GitHub Issues 里提供了模板，指引您提出正确的问题，有利于获得优质的回答，甚至可能解决您还没有想到的问题。而且就算答疑解惑要耗费不少时间，我还是会尽量在 GitHub 里回答问题。但在聊天室里，我就没功夫这么做了。😅
+
+聊天室里的聊天内容也不如 GitHub 里好搜索，聊天里的问答很容易就找不到了。只有在 GitHub Issues 里的问答才能帮助您成为  [FastAPI 专家](fastapi-people.md#experts){.internal-link target=_blank}，在 GitHub Issues 中为您带来更多关注。
+
+另一方面，聊天室里有成千上万的用户，在这里，您有很大可能遇到聊得来的人。😄
 
 ## 赞助作者
 
-你还可以通过 <a href="https://github.com/sponsors/tiangolo" class="external-link" target="_blank">GitHub sponsors</a> 在经济上支持作者（我）。
+您还可以通过 <a href="https://github.com/sponsors/tiangolo" class="external-link" target="_blank">GitHub 赞助商</a>资助本项目的作者（就是我）。
 
-这样你可以给我买杯咖啡☕️以示谢意😄。
+给我买杯咖啡 ☕️ 以示感谢 😄
+
+当然您也可以成为 FastAPI 的金牌或银牌赞助商。🏅🎉
+
+## 赞助 FastAPI 使用的工具
+
+如您在本文档中所见，FastAPI 站在巨人的肩膀上，它们分别是 Starlette 和 Pydantic。
+
+您还可以赞助：
+
+* <a href="https://github.com/sponsors/samuelcolvin" class="external-link" target="_blank">Samuel Colvin （Pydantic）</a>
+* <a href="https://github.com/sponsors/encode" class="external-link" target="_blank">Encode （Starlette, Uvicorn）</a>
 
 ---
 
-感谢！
+谢谢！🚀
+

docs/zh/docs/tutorial/path-operation-configuration.md

@@ -0,0 +1,101 @@
+# 路径操作配置
+
+*路径操作装饰器*支持多种配置参数。
+
+!!! warning "警告"
+
+    注意：以下参数应直接传递给**路径操作装饰器**，不能传递给*路径操作函数*。
+
+## `status_code` 状态码
+
+`status_code` 用于定义*路径操作*响应中的 HTTP 状态码。
+
+可以直接传递 `int` 代码， 比如 `404`。
+
+如果记不住数字码的涵义，也可以用 `status` 的快捷常量：
+
+```Python hl_lines="3  17"
+{!../../../docs_src/path_operation_configuration/tutorial001.py!}
+```
+
+状态码在响应中使用，并会被添加到 OpenAPI 概图。
+
+!!! note "技术细节"
+
+    也可以使用 `from starlette import status` 导入状态码。
+    
+    **FastAPI** 的`fastapi.status` 和 `starlette.status` 一样，只是快捷方式。实际上，`fastapi.status` 直接继承自 Starlette。
+
+## `tags` 参数
+
+`tags` 参数的值是由 `str` 组成的 `list` （一般只有一个 `str` ），`tags` 用于为*路径操作*添加标签：
+
+```Python hl_lines="17  22  27"
+{!../../../docs_src/path_operation_configuration/tutorial002.py!}
+```
+
+OpenAPI 概图会自动添加标签，供 API 文档接口使用：
+
+<img src="/img/tutorial/path-operation-configuration/image01.png">
+
+## `summary` 和 `description` 参数
+
+路径装饰器还支持 `summary` 和 `description` 这两个参数：
+
+```Python hl_lines="20-21"
+{!../../../docs_src/path_operation_configuration/tutorial003.py!}
+```
+
+## 文档字符串（`docstring`）
+
+描述内容比较长且占用多行时，可以在函数的 <abbr title="函数中作为第一个表达式，用于文档目的的一个多行字符串（并没有被分配个任何变量）">docstring</abbr> 中声明*路径操作*的描述，**FastAPI** 支持从文档字符串中读取描述内容。
+
+文档字符串支持 <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a>，能正确解析和显示 Markdown 的内容，但要注意文档字符串的缩进。
+
+```Python hl_lines="19-27"
+{!../../../docs_src/path_operation_configuration/tutorial004.py!}
+```
+
+下图为 Markdown 文本在 API 文档中的显示效果：
+
+<img src="/img/tutorial/path-operation-configuration/image02.png">
+
+## 响应描述
+
+`response_description` 参数用于定义响应的描述说明：
+
+```Python hl_lines="21"
+{!../../../docs_src/path_operation_configuration/tutorial005.py!}
+```
+
+!!! info "说明"
+
+    注意，`response_description` 只用于描述响应，`description` 一般则用于描述*路径操作*。
+
+!!! check "检查"
+
+    OpenAPI 规定每个*路径操作*都要有响应描述。
+    
+    如果没有定义响应描述，**FastAPI** 则自动生成内容为 "Successful response" 的响应描述。
+
+<img src="/img/tutorial/path-operation-configuration/image03.png">
+
+## 弃用*路径操作*
+
+`deprecated` 参数可以把*路径操作*标记为<abbr title="过时，建议不要使用">弃用</abbr>，无需直接删除：
+
+```Python hl_lines="16"
+{!../../../docs_src/path_operation_configuration/tutorial006.py!}
+```
+
+API 文档会把该路径操作标记为弃用：
+
+<img src="/img/tutorial/path-operation-configuration/image04.png">
+
+下图显示了正常*路径操作*与弃用*路径操作* 的区别：
+
+<img src="/img/tutorial/path-operation-configuration/image05.png">
+
+## 小结
+
+通过传递参数给*路径操作装饰器* ，即可轻松地配置*路径操作*、添加元数据。

docs/zh/mkdocs.yml

@@ -29,9 +29,6 @@ theme:
 repo_name: tiangolo/fastapi
 repo_url: https://github.com/tiangolo/fastapi
 edit_uri: ''
-google_analytics:
-- UA-133183413-1
-- auto
 plugins:
 - search
 - markdownextradata:
@@ -81,6 +78,7 @@ nav:
   - tutorial/request-files.md
   - tutorial/request-forms-and-files.md
   - tutorial/handling-errors.md
+  - tutorial/path-operation-configuration.md
   - tutorial/body-updates.md
   - 依赖项:
     - tutorial/dependencies/index.md
@@ -120,8 +118,12 @@ markdown_extensions:
     - name: mermaid
       class: mermaid
       format: !!python/name:pymdownx.superfences.fence_code_format ''
-- pymdownx.tabbed
+- pymdownx.tabbed:
+    alternate_style: true
 extra:
+  analytics:
+    provider: google
+    property: UA-133183413-1
   social:
   - icon: fontawesome/brands/github-alt
     link: https://github.com/tiangolo/fastapi

docs_src/app_testing/app_b/test_main.py

@@ -1,6 +1,6 @@
 from fastapi.testclient import TestClient
 
-from .main_b import app
+from .main import app
 
 client = TestClient(app)
 

docs_src/app_testing/app_b_py310/main.py

@@ -0,0 +1,36 @@
+from fastapi import FastAPI, Header, HTTPException
+from pydantic import BaseModel
+
+fake_secret_token = "coneofsilence"
+
+fake_db = {
+    "foo": {"id": "foo", "title": "Foo", "description": "There goes my hero"},
+    "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
+}
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    id: str
+    title: str
+    description: str | None = None
+
+
+@app.get("/items/{item_id}", response_model=Item)
+async def read_main(item_id: str, x_token: str = Header(...)):
+    if x_token != fake_secret_token:
+        raise HTTPException(status_code=400, detail="Invalid X-Token header")
+    if item_id not in fake_db:
+        raise HTTPException(status_code=404, detail="Item not found")
+    return fake_db[item_id]
+
+
+@app.post("/items/", response_model=Item)
+async def create_item(item: Item, x_token: str = Header(...)):
+    if x_token != fake_secret_token:
+        raise HTTPException(status_code=400, detail="Invalid X-Token header")
+    if item.id in fake_db:
+        raise HTTPException(status_code=400, detail="Item already exists")
+    fake_db[item.id] = item
+    return item

docs_src/app_testing/app_b_py310/test_main.py

@@ -0,0 +1,65 @@
+from fastapi.testclient import TestClient
+
+from .main import app
+
+client = TestClient(app)
+
+
+def test_read_item():
+    response = client.get("/items/foo", headers={"X-Token": "coneofsilence"})
+    assert response.status_code == 200
+    assert response.json() == {
+        "id": "foo",
+        "title": "Foo",
+        "description": "There goes my hero",
+    }
+
+
+def test_read_item_bad_token():
+    response = client.get("/items/foo", headers={"X-Token": "hailhydra"})
+    assert response.status_code == 400
+    assert response.json() == {"detail": "Invalid X-Token header"}
+
+
+def test_read_inexistent_item():
+    response = client.get("/items/baz", headers={"X-Token": "coneofsilence"})
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Item not found"}
+
+
+def test_create_item():
+    response = client.post(
+        "/items/",
+        headers={"X-Token": "coneofsilence"},
+        json={"id": "foobar", "title": "Foo Bar", "description": "The Foo Barters"},
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "id": "foobar",
+        "title": "Foo Bar",
+        "description": "The Foo Barters",
+    }
+
+
+def test_create_item_bad_token():
+    response = client.post(
+        "/items/",
+        headers={"X-Token": "hailhydra"},
+        json={"id": "bazz", "title": "Bazz", "description": "Drop the bazz"},
+    )
+    assert response.status_code == 400
+    assert response.json() == {"detail": "Invalid X-Token header"}
+
+
+def test_create_existing_item():
+    response = client.post(
+        "/items/",
+        headers={"X-Token": "coneofsilence"},
+        json={
+            "id": "foo",
+            "title": "The Foo ID Stealers",
+            "description": "There goes my stealer",
+        },
+    )
+    assert response.status_code == 400
+    assert response.json() == {"detail": "Item already exists"}

docs_src/background_tasks/tutorial002_py310.py

@@ -0,0 +1,24 @@
+from fastapi import BackgroundTasks, Depends, FastAPI
+
+app = FastAPI()
+
+
+def write_log(message: str):
+    with open("log.txt", mode="a") as log:
+        log.write(message)
+
+
+def get_query(background_tasks: BackgroundTasks, q: str | None = None):
+    if q:
+        message = f"found query: {q}\n"
+        background_tasks.add_task(write_log, message)
+    return q
+
+
+@app.post("/send-notification/{email}")
+async def send_notification(
+    email: str, background_tasks: BackgroundTasks, q: str = Depends(get_query)
+):
+    message = f"message to {email}\n"
+    background_tasks.add_task(write_log, message)
+    return {"message": "Message sent"}

docs_src/body/tutorial001_py310.py

@@ -0,0 +1,17 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+app = FastAPI()
+
+
+@app.post("/items/")
+async def create_item(item: Item):
+    return item

docs_src/body/tutorial002_py310.py

@@ -0,0 +1,21 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+app = FastAPI()
+
+
+@app.post("/items/")
+async def create_item(item: Item):
+    item_dict = item.dict()
+    if item.tax:
+        price_with_tax = item.price + item.tax
+        item_dict.update({"price_with_tax": price_with_tax})
+    return item_dict

docs_src/body/tutorial003_py310.py

@@ -0,0 +1,17 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+app = FastAPI()
+
+
+@app.put("/items/{item_id}")
+async def create_item(item_id: int, item: Item):
+    return {"item_id": item_id, **item.dict()}

docs_src/body/tutorial004_py310.py

@@ -0,0 +1,20 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+app = FastAPI()
+
+
+@app.put("/items/{item_id}")
+async def create_item(item_id: int, item: Item, q: str | None = None):
+    result = {"item_id": item_id, **item.dict()}
+    if q:
+        result.update({"q": q})
+    return result

docs_src/body_fields/tutorial001_py310.py

@@ -0,0 +1,19 @@
+from fastapi import Body, FastAPI
+from pydantic import BaseModel, Field
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = Field(
+        None, title="The description of the item", max_length=300
+    )
+    price: float = Field(..., gt=0, description="The price must be greater than zero")
+    tax: float | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item = Body(..., embed=True)):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_multiple_params/tutorial001_py310.py

@@ -0,0 +1,26 @@
+from fastapi import FastAPI, Path
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(
+    *,
+    item_id: int = Path(..., title="The ID of the item to get", ge=0, le=1000),
+    q: str | None = None,
+    item: Item | None = None,
+):
+    results = {"item_id": item_id}
+    if q:
+        results.update({"q": q})
+    if item:
+        results.update({"item": item})
+    return results

docs_src/body_multiple_params/tutorial002_py310.py

@@ -0,0 +1,22 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+class User(BaseModel):
+    username: str
+    full_name: str | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item, user: User):
+    results = {"item_id": item_id, "item": item, "user": user}
+    return results

docs_src/body_multiple_params/tutorial003_py310.py

@@ -0,0 +1,24 @@
+from fastapi import Body, FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+class User(BaseModel):
+    username: str
+    full_name: str | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(
+    item_id: int, item: Item, user: User, importance: int = Body(...)
+):
+    results = {"item_id": item_id, "item": item, "user": user, "importance": importance}
+    return results

docs_src/body_multiple_params/tutorial004_py310.py

@@ -0,0 +1,31 @@
+from fastapi import Body, FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+class User(BaseModel):
+    username: str
+    full_name: str | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(
+    *,
+    item_id: int,
+    item: Item,
+    user: User,
+    importance: int = Body(..., gt=0),
+    q: str | None = None
+):
+    results = {"item_id": item_id, "item": item, "user": user, "importance": importance}
+    if q:
+        results.update({"q": q})
+    return results

docs_src/body_multiple_params/tutorial005_py310.py

@@ -0,0 +1,17 @@
+from fastapi import Body, FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item = Body(..., embed=True)):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial001_py310.py

@@ -0,0 +1,18 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: list = []
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial002_py310.py

@@ -0,0 +1,18 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: list[str] = []
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial002_py39.py

@@ -0,0 +1,20 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+    tags: list[str] = []
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial003_py310.py

@@ -0,0 +1,18 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: set[str] = set()
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial003_py39.py

@@ -0,0 +1,20 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+    tags: set[str] = set()
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial004_py310.py

@@ -0,0 +1,24 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: str
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: set[str] = []
+    image: Image | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial004_py39.py

@@ -0,0 +1,26 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: str
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+    tags: set[str] = []
+    image: Optional[Image] = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial005_py310.py

@@ -0,0 +1,24 @@
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: set[str] = set()
+    image: Image | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial005_py39.py

@@ -0,0 +1,26 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+    tags: set[str] = set()
+    image: Optional[Image] = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial006_py310.py

@@ -0,0 +1,24 @@
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: set[str] = set()
+    images: list[Image] | None = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial006_py39.py

@@ -0,0 +1,26 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+    tags: set[str] = set()
+    images: Optional[list[Image]] = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    results = {"item_id": item_id, "item": item}
+    return results

docs_src/body_nested_models/tutorial007_py310.py

@@ -0,0 +1,30 @@
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: set[str] = set()
+    images: list[Image] | None = None
+
+
+class Offer(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    items: list[Item]
+
+
+@app.post("/offers/")
+async def create_offer(offer: Offer):
+    return offer

docs_src/body_nested_models/tutorial007_py39.py

@@ -0,0 +1,32 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+    tags: set[str] = set()
+    images: Optional[list[Image]] = None
+
+
+class Offer(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    items: list[Item]
+
+
+@app.post("/offers/")
+async def create_offer(offer: Offer):
+    return offer

docs_src/body_nested_models/tutorial008_py39.py

@@ -0,0 +1,14 @@
+from fastapi import FastAPI
+from pydantic import BaseModel, HttpUrl
+
+app = FastAPI()
+
+
+class Image(BaseModel):
+    url: HttpUrl
+    name: str
+
+
+@app.post("/images/multiple/")
+async def create_multiple_images(images: list[Image]):
+    return images

docs_src/body_nested_models/tutorial009_py39.py

@@ -0,0 +1,8 @@
+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.post("/index-weights/")
+async def create_index_weights(weights: dict[int, float]):
+    return weights

docs_src/body_updates/tutorial001_py310.py

@@ -0,0 +1,32 @@
+from fastapi import FastAPI
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str | None = None
+    description: str | None = None
+    price: float | None = None
+    tax: float = 10.5
+    tags: list[str] = []
+
+
+items = {
+    "foo": {"name": "Foo", "price": 50.2},
+    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
+    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
+}
+
+
+@app.get("/items/{item_id}", response_model=Item)
+async def read_item(item_id: str):
+    return items[item_id]
+
+
+@app.put("/items/{item_id}", response_model=Item)
+async def update_item(item_id: str, item: Item):
+    update_item_encoded = jsonable_encoder(item)
+    items[item_id] = update_item_encoded
+    return update_item_encoded

docs_src/body_updates/tutorial001_py39.py

@@ -0,0 +1,34 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: Optional[str] = None
+    description: Optional[str] = None
+    price: Optional[float] = None
+    tax: float = 10.5
+    tags: list[str] = []
+
+
+items = {
+    "foo": {"name": "Foo", "price": 50.2},
+    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
+    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
+}
+
+
+@app.get("/items/{item_id}", response_model=Item)
+async def read_item(item_id: str):
+    return items[item_id]
+
+
+@app.put("/items/{item_id}", response_model=Item)
+async def update_item(item_id: str, item: Item):
+    update_item_encoded = jsonable_encoder(item)
+    items[item_id] = update_item_encoded
+    return update_item_encoded

docs_src/body_updates/tutorial002_py310.py

@@ -0,0 +1,35 @@
+from fastapi import FastAPI
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str | None = None
+    description: str | None = None
+    price: float | None = None
+    tax: float = 10.5
+    tags: list[str] = []
+
+
+items = {
+    "foo": {"name": "Foo", "price": 50.2},
+    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
+    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
+}
+
+
+@app.get("/items/{item_id}", response_model=Item)
+async def read_item(item_id: str):
+    return items[item_id]
+
+
+@app.patch("/items/{item_id}", response_model=Item)
+async def update_item(item_id: str, item: Item):
+    stored_item_data = items[item_id]
+    stored_item_model = Item(**stored_item_data)
+    update_data = item.dict(exclude_unset=True)
+    updated_item = stored_item_model.copy(update=update_data)
+    items[item_id] = jsonable_encoder(updated_item)
+    return updated_item

docs_src/body_updates/tutorial002_py39.py

@@ -0,0 +1,37 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: Optional[str] = None
+    description: Optional[str] = None
+    price: Optional[float] = None
+    tax: float = 10.5
+    tags: list[str] = []
+
+
+items = {
+    "foo": {"name": "Foo", "price": 50.2},
+    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
+    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
+}
+
+
+@app.get("/items/{item_id}", response_model=Item)
+async def read_item(item_id: str):
+    return items[item_id]
+
+
+@app.patch("/items/{item_id}", response_model=Item)
+async def update_item(item_id: str, item: Item):
+    stored_item_data = items[item_id]
+    stored_item_model = Item(**stored_item_data)
+    update_data = item.dict(exclude_unset=True)
+    updated_item = stored_item_model.copy(update=update_data)
+    items[item_id] = jsonable_encoder(updated_item)
+    return updated_item