🔥 Remove unused files from source examples

[skip ci]

.github/workflows/test-redistribute.yml

@@ -12,11 +12,6 @@ on:
 jobs:
   test-redistribute:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        package:
-          - fastapi
-          - fastapi-slim
     steps:
       - name: Dump GitHub context
         env:
@@ -30,8 +25,6 @@ jobs:
       - name: Install build dependencies
         run: pip install build
       - name: Build source distribution
-        env:
-          TIANGOLO_BUILD_PACKAGE: ${{ matrix.package }}
         run: python -m build --sdist
       - name: Decompress source distribution
         run: |
@@ -41,8 +34,6 @@ jobs:
         run: |
           cd dist/fastapi*/
           pip install --group tests --editable .[all]
-        env:
-          TIANGOLO_BUILD_PACKAGE: ${{ matrix.package }}
       - name: Run source distribution tests
         run: |
           cd dist/fastapi*/

.github/workflows/test.yml

@@ -14,6 +14,7 @@ on:
 
 env:
   UV_NO_SYNC: true
+  INLINE_SNAPSHOT_DEFAULT_FLAGS: review
 
 jobs:
   changes:
@@ -55,14 +56,10 @@ jobs:
           - starlette-pypi
           - starlette-git
         include:
-          - os: ubuntu-latest
-            python-version: "3.9"
-            coverage: coverage
-            uv-resolution: lowest-direct
           - os: macos-latest
             python-version: "3.10"
             coverage: coverage
-            uv-resolution: highest
+            uv-resolution: lowest-direct
           - os: windows-latest
             python-version: "3.12"
             coverage: coverage

README.md

@@ -34,7 +34,7 @@ The key features are:
 * **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
 * **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.
+* **Intuitive**: Great editor support. <dfn title="also known as auto-complete, autocompletion, IntelliSense">Completion</dfn> 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.
@@ -371,7 +371,7 @@ item: Item
 * 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:
+* <dfn title="also known as: serialization, parsing, marshalling">Conversion</dfn> of input data: coming from the network to Python data and types. Reading from:
     * JSON.
     * Path parameters.
     * Query parameters.
@@ -379,7 +379,7 @@ item: Item
     * 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):
+* <dfn title="also known as: serialization, parsing, marshalling">Conversion</dfn> 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.
@@ -442,7 +442,7 @@ For a more complete example including more features, see the <a href="https://fa
 
 * 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.
+* A very powerful and easy to use **<dfn title="also known as components, resources, providers, services, injectables">Dependency Injection</dfn>** 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).
 * **GraphQL** integration with <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> and other libraries.
@@ -527,7 +527,7 @@ Used by Starlette:
 
 * <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Required if you want to use the `TestClient`.
 * <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://github.com/Kludex/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://github.com/Kludex/python-multipart" target="_blank"><code>python-multipart</code></a> - Required if you want to support form <dfn title="converting the string that comes from an HTTP request into Python data">"parsing"</dfn>, with `request.form()`.
 
 Used by FastAPI:
 

docs/de/docs/_llm-test.md

@@ -35,7 +35,7 @@ Siehe Abschnitt `### Content of code snippets` im allgemeinen Prompt in `scripts
 
 //// tab | Test
 
-Gestern schrieb mein Freund: „Wenn man unkorrekt korrekt schreibt, hat man es unkorrekt geschrieben“. Worauf ich antwortete: „Korrekt, aber ‚unkorrekt‘ ist unkorrekterweise nicht ‚„unkorrekt“‘“.
+Gestern schrieb mein Freund: „Wenn man ‚incorrectly‘ korrekt schreibt, hat man es falsch geschrieben“. Worauf ich antwortete: „Korrekt, aber ‚incorrectly‘ ist inkorrekterweise nicht ‚„incorrectly“‘“.
 
 /// note | Hinweis
 
@@ -202,11 +202,6 @@ Hier einige Dinge, die in HTML-„abbr“-Elemente gepackt sind (einige sind erf
 * <abbr title="XML Web Token">XWT</abbr>
 * <abbr title="Paralleles Server-Gateway-Interface">PSGI</abbr>
 
-### Das abbr gibt eine Erklärung { #the-abbr-gives-an-explanation }
-
-* <abbr title="Eine Gruppe von Maschinen, die so konfiguriert sind, dass sie verbunden sind und in irgendeiner Weise zusammenarbeiten.">Cluster</abbr>
-* <abbr title="Eine Methode des Machine Learning, die künstliche neuronale Netze mit zahlreichen versteckten Schichten zwischen Eingabe- und Ausgabeschicht verwendet und so eine umfassende interne Struktur entwickelt">Deep Learning</abbr>
-
 ### Das abbr gibt eine vollständige Phrase und eine Erklärung { #the-abbr-gives-a-full-phrase-and-an-explanation }
 
 * <abbr title="Mozilla Developer Network – Mozilla-Entwicklernetzwerk: Dokumentation für Entwickler, geschrieben von den Firefox-Leuten">MDN</abbr>
@@ -224,6 +219,11 @@ Siehe Abschnitt `### HTML abbr elements` im allgemeinen Prompt in `scripts/trans
 
 ////
 
+## HTML „dfn“-Elemente { #html-dfn-elements }
+
+* <dfn title="Eine Gruppe von Maschinen, die so konfiguriert sind, dass sie verbunden sind und in irgendeiner Weise zusammenarbeiten.">Cluster</dfn>
+* <dfn title="Eine Methode des Machine Learning, die künstliche neuronale Netze mit zahlreichen versteckten Schichten zwischen Eingabe- und Ausgabeschicht verwendet und so eine umfassende interne Struktur entwickelt">Deep Learning</dfn>
+
 ## Überschriften { #headings }
 
 //// tab | Test
@@ -248,7 +248,7 @@ Die einzige strenge Regel für Überschriften ist, dass das LLM den Hash-Teil in
 
 Siehe Abschnitt `### Headings` im allgemeinen Prompt in `scripts/translate.py`.
 
-Für einige sprachspezifische Anweisungen, siehe z. B. den Abschnitt `### Headings` in `docs/de/llm-prompt.md`.
+Für einige sprachsspezifische Anweisungen, siehe z. B. den Abschnitt `### Headings` in `docs/de/llm-prompt.md`.
 
 ////
 

docs/en/docs/_llm-test.md

@@ -202,11 +202,6 @@ Here some things wrapped in HTML "abbr" elements (Some are invented):
 * <abbr title="XML Web Token">XWT</abbr>
 * <abbr title="Parallel Server Gateway Interface">PSGI</abbr>
 
-### The abbr gives an explanation { #the-abbr-gives-an-explanation }
-
-* <abbr title="A group of machines that are configured to be connected and work together in some way.">cluster</abbr>
-* <abbr title="A method of machine learning that uses artificial neural networks with numerous hidden layers between input and output layers, thereby developing a comprehensive internal structure">Deep Learning</abbr>
-
 ### The abbr gives a full phrase and an explanation { #the-abbr-gives-a-full-phrase-and-an-explanation }
 
 * <abbr title="Mozilla Developer Network: documentation for developers, written by the Firefox people">MDN</abbr>
@@ -224,6 +219,11 @@ See section `### HTML abbr elements` in the general prompt in `scripts/translate
 
 ////
 
+## HTML "dfn" elements { #html-dfn-elements }
+
+* <dfn title="A group of machines that are configured to be connected and work together in some way.">cluster</dfn>
+* <dfn title="A method of machine learning that uses artificial neural networks with numerous hidden layers between input and output layers, thereby developing a comprehensive internal structure">Deep Learning</dfn>
+
 ## Headings { #headings }
 
 //// tab | Test

docs/en/docs/advanced/additional-responses.md

@@ -26,7 +26,7 @@ Each of those response `dict`s can have a key `model`, containing a Pydantic mod
 
 For example, to declare another response with a status code `404` and a Pydantic model `Message`, you can write:
 
-{* ../../docs_src/additional_responses/tutorial001_py39.py hl[18,22] *}
+{* ../../docs_src/additional_responses/tutorial001_py310.py hl[18,22] *}
 
 /// note
 
@@ -203,7 +203,7 @@ For example, you can declare a response with a status code `404` that uses a Pyd
 
 And a response with a status code `200` that uses your `response_model`, but includes a custom `example`:
 
-{* ../../docs_src/additional_responses/tutorial003_py39.py hl[20:31] *}
+{* ../../docs_src/additional_responses/tutorial003_py310.py hl[20:31] *}
 
 It will all be combined and included in your OpenAPI, and shown in the API docs:
 

docs/en/docs/advanced/advanced-dependencies.md

@@ -18,7 +18,7 @@ Not the class itself (which is already a callable), but an instance of that clas
 
 To do that, we declare a method `__call__`:
 
-{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[12] *}
+{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[12] *}
 
 In this case, this `__call__` is what **FastAPI** will use to check for additional parameters and sub-dependencies, and this is what will be called to pass a value to the parameter in your *path operation function* later.
 
@@ -26,7 +26,7 @@ In this case, this `__call__` is what **FastAPI** will use to check for addition
 
 And now, we can use `__init__` to declare the parameters of the instance that we can use to "parameterize" the dependency:
 
-{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[9] *}
+{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[9] *}
 
 In this case, **FastAPI** won't ever touch or care about `__init__`, we will use it directly in our code.
 
@@ -34,7 +34,7 @@ In this case, **FastAPI** won't ever touch or care about `__init__`, we will use
 
 We could create an instance of this class with:
 
-{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[18] *}
+{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[18] *}
 
 And that way we are able to "parameterize" our dependency, that now has `"bar"` inside of it, as the attribute `checker.fixed_content`.
 
@@ -50,7 +50,7 @@ checker(q="somequery")
 
 ...and pass whatever that returns as the value of the dependency in our *path operation function* as the parameter `fixed_content_included`:
 
-{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[22] *}
+{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[22] *}
 
 /// tip
 

docs/en/docs/advanced/advanced-python-types.md

@@ -0,0 +1,61 @@
+# Advanced Python Types { #advanced-python-types }
+
+Here are some additional ideas that might be useful when working with Python types.
+
+## Using `Union` or `Optional` { #using-union-or-optional }
+
+If your code for some reason can't use `|`, for example if it's not in a type annotation but in something like `response_model=`, instead of using the vertical bar (`|`) you can use `Union` from `typing`.
+
+For example, you could declare that something could be a `str` or `None`:
+
+```python
+from typing import Union
+
+
+def say_hi(name: Union[str, None]):
+        print(f"Hi {name}!")
+```
+
+`typing` also has a shortcut to declare that something could be `None`, with `Optional`.
+
+Here's a tip from my very **subjective** point of view:
+
+* 🚨 Avoid using `Optional[SomeType]`
+* Instead ✨ **use `Union[SomeType, None]`** ✨.
+
+Both are equivalent and underneath they are the same, but I would recommend `Union` instead of `Optional` because the word "**optional**" would seem to imply that the value is optional, and it actually means "it can be `None`", even if it's not optional and is still required.
+
+I think `Union[SomeType, None]` is more explicit about what it means.
+
+It's just about the words and names. But those words can affect how you and your teammates think about the code.
+
+As an example, let's take this function:
+
+```python
+from typing import Optional
+
+
+def say_hi(name: Optional[str]):
+    print(f"Hey {name}!")
+```
+
+The parameter `name` is defined as `Optional[str]`, but it is **not optional**, you cannot call the function without the parameter:
+
+```Python
+say_hi()  # Oh, no, this throws an error! 😱
+```
+
+The `name` parameter is **still required** (not *optional*) because it doesn't have a default value. Still, `name` accepts `None` as the value:
+
+```Python
+say_hi(name=None)  # This works, None is valid 🎉
+```
+
+The good news is, in most cases, you will be able to simply use `|` to define unions of types:
+
+```python
+def say_hi(name: str | None):
+    print(f"Hey {name}!")
+```
+
+So, normally you don't have to worry about names like `Optional` and `Union`. 😎

docs/en/docs/advanced/async-tests.md

@@ -32,11 +32,11 @@ For a simple example, let's consider a file structure similar to the one describ
 
 The file `main.py` would have:
 
-{* ../../docs_src/async_tests/app_a_py39/main.py *}
+{* ../../docs_src/async_tests/app_a_py310/main.py *}
 
 The file `test_main.py` would have the tests for `main.py`, it could look like this now:
 
-{* ../../docs_src/async_tests/app_a_py39/test_main.py *}
+{* ../../docs_src/async_tests/app_a_py310/test_main.py *}
 
 ## Run it { #run-it }
 
@@ -56,7 +56,7 @@ $ pytest
 
 The marker `@pytest.mark.anyio` tells pytest that this test function should be called asynchronously:
 
-{* ../../docs_src/async_tests/app_a_py39/test_main.py hl[7] *}
+{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[7] *}
 
 /// tip
 
@@ -66,7 +66,7 @@ Note that the test function is now `async def` instead of just `def` as before w
 
 Then we can create an `AsyncClient` with the app, and send async requests to it, using `await`.
 
-{* ../../docs_src/async_tests/app_a_py39/test_main.py hl[9:12] *}
+{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[9:12] *}
 
 This is the equivalent to:
 

docs/en/docs/advanced/behind-a-proxy.md

@@ -44,7 +44,7 @@ $ fastapi run --forwarded-allow-ips="*"
 
 For example, let's say you define a *path operation* `/items/`:
 
-{* ../../docs_src/behind_a_proxy/tutorial001_01_py39.py hl[6] *}
+{* ../../docs_src/behind_a_proxy/tutorial001_01_py310.py hl[6] *}
 
 If the client tries to go to `/items`, by default, it would be redirected to `/items/`.
 
@@ -115,7 +115,7 @@ In this case, the original path `/app` would actually be served at `/api/v1/app`
 
 Even though all your code is written assuming there's just `/app`.
 
-{* ../../docs_src/behind_a_proxy/tutorial001_py39.py hl[6] *}
+{* ../../docs_src/behind_a_proxy/tutorial001_py310.py hl[6] *}
 
 And the proxy would be **"stripping"** the **path prefix** on the fly before transmitting the request to the app server (probably Uvicorn via FastAPI CLI), keeping your application convinced that it is being served at `/app`, so that you don't have to update all your code to include the prefix `/api/v1`.
 
@@ -193,7 +193,7 @@ You can get the current `root_path` used by your application for each request, i
 
 Here we are including it in the message just for demonstration purposes.
 
-{* ../../docs_src/behind_a_proxy/tutorial001_py39.py hl[8] *}
+{* ../../docs_src/behind_a_proxy/tutorial001_py310.py hl[8] *}
 
 Then, if you start Uvicorn with:
 
@@ -220,7 +220,7 @@ The response would be something like:
 
 Alternatively, if you don't have a way to provide a command line option like `--root-path` or equivalent, you can set the `root_path` parameter when creating your FastAPI app:
 
-{* ../../docs_src/behind_a_proxy/tutorial002_py39.py hl[3] *}
+{* ../../docs_src/behind_a_proxy/tutorial002_py310.py hl[3] *}
 
 Passing the `root_path` to `FastAPI` would be the equivalent of passing the `--root-path` command line option to Uvicorn or Hypercorn.
 
@@ -400,7 +400,7 @@ If you pass a custom list of `servers` and there's a `root_path` (because your A
 
 For example:
 
-{* ../../docs_src/behind_a_proxy/tutorial003_py39.py hl[4:7] *}
+{* ../../docs_src/behind_a_proxy/tutorial003_py310.py hl[4:7] *}
 
 Will generate an OpenAPI schema like:
 
@@ -455,7 +455,7 @@ If you don't specify the `servers` parameter and `root_path` is equal to `/`, th
 
 If you don't want **FastAPI** to include an automatic server using the `root_path`, you can use the parameter `root_path_in_servers=False`:
 
-{* ../../docs_src/behind_a_proxy/tutorial004_py39.py hl[9] *}
+{* ../../docs_src/behind_a_proxy/tutorial004_py310.py hl[9] *}
 
 and then it won't include it in the OpenAPI schema.
 

docs/en/docs/advanced/custom-response.md

@@ -30,7 +30,7 @@ This is because by default, FastAPI will inspect every item inside and make sure
 
 But if you are certain that the content that you are returning is **serializable with JSON**, you can pass it directly to the response class and avoid the extra overhead that FastAPI would have by passing your return content through the `jsonable_encoder` before passing it to the response class.
 
-{* ../../docs_src/custom_response/tutorial001b_py39.py hl[2,7] *}
+{* ../../docs_src/custom_response/tutorial001b_py310.py hl[2,7] *}
 
 /// info
 
@@ -55,7 +55,7 @@ To return a response with HTML directly from **FastAPI**, use `HTMLResponse`.
 * Import `HTMLResponse`.
 * Pass `HTMLResponse` as the parameter `response_class` of your *path operation decorator*.
 
-{* ../../docs_src/custom_response/tutorial002_py39.py hl[2,7] *}
+{* ../../docs_src/custom_response/tutorial002_py310.py hl[2,7] *}
 
 /// info
 
@@ -73,7 +73,7 @@ As seen in [Return a Response directly](response-directly.md){.internal-link tar
 
 The same example from above, returning an `HTMLResponse`, could look like:
 
-{* ../../docs_src/custom_response/tutorial003_py39.py hl[2,7,19] *}
+{* ../../docs_src/custom_response/tutorial003_py310.py hl[2,7,19] *}
 
 /// warning
 
@@ -97,7 +97,7 @@ The `response_class` will then be used only to document the OpenAPI *path operat
 
 For example, it could be something like:
 
-{* ../../docs_src/custom_response/tutorial004_py39.py hl[7,21,23] *}
+{* ../../docs_src/custom_response/tutorial004_py310.py hl[7,21,23] *}
 
 In this example, the function `generate_html_response()` already generates and returns a `Response` instead of returning the HTML in a `str`.
 
@@ -136,7 +136,7 @@ It accepts the following parameters:
 
 FastAPI (actually Starlette) will automatically include a Content-Length header. It will also include a Content-Type header, based on the `media_type` and appending a charset for text types.
 
-{* ../../docs_src/response_directly/tutorial002_py39.py hl[1,18] *}
+{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}
 
 ### `HTMLResponse` { #htmlresponse }
 
@@ -146,7 +146,7 @@ Takes some text or bytes and returns an HTML response, as you read above.
 
 Takes some text or bytes and returns a plain text response.
 
-{* ../../docs_src/custom_response/tutorial005_py39.py hl[2,7,9] *}
+{* ../../docs_src/custom_response/tutorial005_py310.py hl[2,7,9] *}
 
 ### `JSONResponse` { #jsonresponse }
 
@@ -180,7 +180,7 @@ This requires installing `ujson` for example with `pip install ujson`.
 
 ///
 
-{* ../../docs_src/custom_response/tutorial001_py39.py hl[2,7] *}
+{* ../../docs_src/custom_response/tutorial001_py310.py hl[2,7] *}
 
 /// tip
 
@@ -194,14 +194,14 @@ Returns an HTTP redirect. Uses a 307 status code (Temporary Redirect) by default
 
 You can return a `RedirectResponse` directly:
 
-{* ../../docs_src/custom_response/tutorial006_py39.py hl[2,9] *}
+{* ../../docs_src/custom_response/tutorial006_py310.py hl[2,9] *}
 
 ---
 
 Or you can use it in the `response_class` parameter:
 
 
-{* ../../docs_src/custom_response/tutorial006b_py39.py hl[2,7,9] *}
+{* ../../docs_src/custom_response/tutorial006b_py310.py hl[2,7,9] *}
 
 If you do that, then you can return the URL directly from your *path operation* function.
 
@@ -211,13 +211,13 @@ In this case, the `status_code` used will be the default one for the `RedirectRe
 
 You can also use the `status_code` parameter combined with the `response_class` parameter:
 
-{* ../../docs_src/custom_response/tutorial006c_py39.py hl[2,7,9] *}
+{* ../../docs_src/custom_response/tutorial006c_py310.py hl[2,7,9] *}
 
 ### `StreamingResponse` { #streamingresponse }
 
 Takes an async generator or a normal generator/iterator and streams the response body.
 
-{* ../../docs_src/custom_response/tutorial007_py39.py hl[2,14] *}
+{* ../../docs_src/custom_response/tutorial007_py310.py hl[2,14] *}
 
 #### Using `StreamingResponse` with file-like objects { #using-streamingresponse-with-file-like-objects }
 
@@ -227,7 +227,7 @@ That way, you don't have to read it all first in memory, and you can pass that g
 
 This includes many libraries to interact with cloud storage, video processing, and others.
 
-{* ../../docs_src/custom_response/tutorial008_py39.py hl[2,10:12,14] *}
+{* ../../docs_src/custom_response/tutorial008_py310.py hl[2,10:12,14] *}
 
 1. This is the generator function. It's a "generator function" because it contains `yield` statements inside.
 2. By using a `with` block, we make sure that the file-like object is closed after the generator function is done. So, after it finishes sending the response.
@@ -256,11 +256,11 @@ Takes a different set of arguments to instantiate than the other response types:
 
 File responses will include appropriate `Content-Length`, `Last-Modified` and `ETag` headers.
 
-{* ../../docs_src/custom_response/tutorial009_py39.py hl[2,10] *}
+{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}
 
 You can also use the `response_class` parameter:
 
-{* ../../docs_src/custom_response/tutorial009b_py39.py hl[2,8,10] *}
+{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}
 
 In this case, you can return the file path directly from your *path operation* function.
 
@@ -274,7 +274,7 @@ Let's say you want it to return indented and formatted JSON, so you want to use
 
 You could create a `CustomORJSONResponse`. The main thing you have to do is create a `Response.render(content)` method that returns the content as `bytes`:
 
-{* ../../docs_src/custom_response/tutorial009c_py39.py hl[9:14,17] *}
+{* ../../docs_src/custom_response/tutorial009c_py310.py hl[9:14,17] *}
 
 Now instead of returning:
 
@@ -300,7 +300,7 @@ The parameter that defines this is `default_response_class`.
 
 In the example below, **FastAPI** will use `ORJSONResponse` by default, in all *path operations*, instead of `JSONResponse`.
 
-{* ../../docs_src/custom_response/tutorial010_py39.py hl[2,4] *}
+{* ../../docs_src/custom_response/tutorial010_py310.py hl[2,4] *}
 
 /// tip
 

docs/en/docs/advanced/dataclasses.md

@@ -64,7 +64,7 @@ In that case, you can simply swap the standard `dataclasses` with `pydantic.data
 
 6. Here we are returning a dictionary that contains `items` which is a list of dataclasses.
 
-    FastAPI is still capable of <abbr title="converting the data to a format that can be transmitted">serializing</abbr> the data to JSON.
+    FastAPI is still capable of <dfn title="converting the data to a format that can be transmitted">serializing</dfn> the data to JSON.
 
 7. Here the `response_model` is using a type annotation of a list of `Author` dataclasses.
 

docs/en/docs/advanced/events.md

@@ -30,7 +30,7 @@ Let's start with an example and then see it in detail.
 
 We create an async function `lifespan()` with `yield` like this:
 
-{* ../../docs_src/events/tutorial003_py39.py hl[16,19] *}
+{* ../../docs_src/events/tutorial003_py310.py hl[16,19] *}
 
 Here we are simulating the expensive *startup* operation of loading the model by putting the (fake) model function in the dictionary with machine learning models before the `yield`. This code will be executed **before** the application **starts taking requests**, during the *startup*.
 
@@ -48,7 +48,7 @@ Maybe you need to start a new version, or you just got tired of running it. 🤷
 
 The first thing to notice, is that we are defining an async function with `yield`. This is very similar to Dependencies with `yield`.
 
-{* ../../docs_src/events/tutorial003_py39.py hl[14:19] *}
+{* ../../docs_src/events/tutorial003_py310.py hl[14:19] *}
 
 The first part of the function, before the `yield`, will be executed **before** the application starts.
 
@@ -60,7 +60,7 @@ If you check, the function is decorated with an `@asynccontextmanager`.
 
 That converts the function into something called an "**async context manager**".
 
-{* ../../docs_src/events/tutorial003_py39.py hl[1,13] *}
+{* ../../docs_src/events/tutorial003_py310.py hl[1,13] *}
 
 A **context manager** in Python is something that you can use in a `with` statement, for example, `open()` can be used as a context manager:
 
@@ -82,7 +82,7 @@ In our code example above, we don't use it directly, but we pass it to FastAPI f
 
 The `lifespan` parameter of the `FastAPI` app takes an **async context manager**, so we can pass our new `lifespan` async context manager to it.
 
-{* ../../docs_src/events/tutorial003_py39.py hl[22] *}
+{* ../../docs_src/events/tutorial003_py310.py hl[22] *}
 
 ## Alternative Events (deprecated) { #alternative-events-deprecated }
 
@@ -104,7 +104,7 @@ These functions can be declared with `async def` or normal `def`.
 
 To add a function that should be run before the application starts, declare it with the event `"startup"`:
 
-{* ../../docs_src/events/tutorial001_py39.py hl[8] *}
+{* ../../docs_src/events/tutorial001_py310.py hl[8] *}
 
 In this case, the `startup` event handler function will initialize the items "database" (just a `dict`) with some values.
 
@@ -116,7 +116,7 @@ And your application won't start receiving requests until all the `startup` even
 
 To add a function that should be run when the application is shutting down, declare it with the event `"shutdown"`:
 
-{* ../../docs_src/events/tutorial002_py39.py hl[6] *}
+{* ../../docs_src/events/tutorial002_py310.py hl[6] *}
 
 Here, the `shutdown` event handler function will write a text line `"Application shutdown"` to a file `log.txt`.
 

docs/en/docs/advanced/generate-clients.md

@@ -40,7 +40,7 @@ Some of these solutions may also be open source or offer free tiers, so you can
 
 Let's start with a simple FastAPI application:
 
-{* ../../docs_src/generate_clients/tutorial001_py39.py hl[7:9,12:13,16:17,21] *}
+{* ../../docs_src/generate_clients/tutorial001_py310.py hl[7:9,12:13,16:17,21] *}
 
 Notice that the *path operations* define the models they use for request payload and response payload, using the models `Item` and `ResponseMessage`.
 
@@ -98,7 +98,7 @@ In many cases, your FastAPI app will be bigger, and you will probably use tags t
 
 For example, you could have a section for **items** and another section for **users**, and they could be separated by tags:
 
-{* ../../docs_src/generate_clients/tutorial002_py39.py hl[21,26,34] *}
+{* ../../docs_src/generate_clients/tutorial002_py310.py hl[21,26,34] *}
 
 ### Generate a TypeScript Client with Tags { #generate-a-typescript-client-with-tags }
 
@@ -145,7 +145,7 @@ For example, here it is using the first tag (you will probably have only one tag
 
 You can then pass that custom function to **FastAPI** as the `generate_unique_id_function` parameter:
 
-{* ../../docs_src/generate_clients/tutorial003_py39.py hl[6:7,10] *}
+{* ../../docs_src/generate_clients/tutorial003_py310.py hl[6:7,10] *}
 
 ### Generate a TypeScript Client with Custom Operation IDs { #generate-a-typescript-client-with-custom-operation-ids }
 
@@ -167,7 +167,7 @@ But for the generated client, we could **modify** the OpenAPI operation IDs righ
 
 We could download the OpenAPI JSON to a file `openapi.json` and then we could **remove that prefixed tag** with a script like this:
 
-{* ../../docs_src/generate_clients/tutorial004_py39.py *}
+{* ../../docs_src/generate_clients/tutorial004_py310.py *}
 
 //// tab | Node.js
 

docs/en/docs/advanced/middleware.md

@@ -57,13 +57,13 @@ Enforces that all incoming requests must either be `https` or `wss`.
 
 Any incoming request to `http` or `ws` will be redirected to the secure scheme instead.
 
-{* ../../docs_src/advanced_middleware/tutorial001_py39.py hl[2,6] *}
+{* ../../docs_src/advanced_middleware/tutorial001_py310.py hl[2,6] *}
 
 ## `TrustedHostMiddleware` { #trustedhostmiddleware }
 
 Enforces that all incoming requests have a correctly set `Host` header, in order to guard against HTTP Host Header attacks.
 
-{* ../../docs_src/advanced_middleware/tutorial002_py39.py hl[2,6:8] *}
+{* ../../docs_src/advanced_middleware/tutorial002_py310.py hl[2,6:8] *}
 
 The following arguments are supported:
 
@@ -78,7 +78,7 @@ Handles GZip responses for any request that includes `"gzip"` in the `Accept-Enc
 
 The middleware will handle both standard and streaming responses.
 
-{* ../../docs_src/advanced_middleware/tutorial003_py39.py hl[2,6] *}
+{* ../../docs_src/advanced_middleware/tutorial003_py310.py hl[2,6] *}
 
 The following arguments are supported:
 

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

@@ -32,7 +32,7 @@ Webhooks are available in OpenAPI 3.1.0 and above, supported by FastAPI `0.99.0`
 
 When you create a **FastAPI** application, there is a `webhooks` attribute that you can use to define *webhooks*, the same way you would define *path operations*, for example with `@app.webhooks.post()`.
 
-{* ../../docs_src/openapi_webhooks/tutorial001_py39.py hl[9:13,36:53] *}
+{* ../../docs_src/openapi_webhooks/tutorial001_py310.py hl[9:13,36:53] *}
 
 The webhooks that you define will end up in the **OpenAPI** schema and the automatic **docs UI**.
 

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

@@ -12,7 +12,7 @@ You can set the OpenAPI `operationId` to be used in your *path operation* with t
 
 You would have to make sure that it is unique for each operation.
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial001_py39.py hl[6] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial001_py310.py hl[6] *}
 
 ### Using the *path operation function* name as the operationId { #using-the-path-operation-function-name-as-the-operationid }
 
@@ -20,7 +20,7 @@ If you want to use your APIs' function names as `operationId`s, you can iterate
 
 You should do it after adding all your *path operations*.
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial002_py39.py hl[2, 12:21, 24] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial002_py310.py hl[2, 12:21, 24] *}
 
 /// tip
 
@@ -40,7 +40,7 @@ Even if they are in different modules (Python files).
 
 To exclude a *path operation* from the generated OpenAPI schema (and thus, from the automatic documentation systems), use the parameter `include_in_schema` and set it to `False`:
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial003_py39.py hl[6] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial003_py310.py hl[6] *}
 
 ## Advanced description from docstring { #advanced-description-from-docstring }
 
@@ -92,7 +92,7 @@ You can extend the OpenAPI schema for a *path operation* using the parameter `op
 
 This `openapi_extra` can be helpful, for example, to declare [OpenAPI Extensions](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#specificationExtensions):
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial005_py39.py hl[6] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial005_py310.py hl[6] *}
 
 If you open the automatic API docs, your extension will show up at the bottom of the specific *path operation*.
 
@@ -139,9 +139,9 @@ For example, you could decide to read and validate the request with your own cod
 
 You could do that with `openapi_extra`:
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial006_py39.py hl[19:36, 39:40] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial006_py310.py hl[19:36, 39:40] *}
 
-In this example, we didn't declare any Pydantic model. In fact, the request body is not even <abbr title="converted from some plain format, like bytes, into Python objects">parsed</abbr> as JSON, it is read directly as `bytes`, and the function `magic_data_reader()` would be in charge of parsing it in some way.
+In this example, we didn't declare any Pydantic model. In fact, the request body is not even <dfn title="converted from some plain format, like bytes, into Python objects">parsed</dfn> as JSON, it is read directly as `bytes`, and the function `magic_data_reader()` would be in charge of parsing it in some way.
 
 Nevertheless, we can declare the expected schema for the request body.
 
@@ -153,7 +153,7 @@ And you could do this even if the data type in the request is not JSON.
 
 For example, in this application we don't use FastAPI's integrated functionality to extract the JSON Schema from Pydantic models nor the automatic validation for JSON. In fact, we are declaring the request content type as YAML, not JSON:
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial007_py39.py hl[15:20, 22] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial007_py310.py hl[15:20, 22] *}
 
 Nevertheless, although we are not using the default integrated functionality, we are still using a Pydantic model to manually generate the JSON Schema for the data that we want to receive in YAML.
 
@@ -161,7 +161,7 @@ Then we use the request directly, and extract the body as `bytes`. This means th
 
 And then in our code, we parse that YAML content directly, and then we are again using the same Pydantic model to validate the YAML content:
 
-{* ../../docs_src/path_operation_advanced_configuration/tutorial007_py39.py hl[24:31] *}
+{* ../../docs_src/path_operation_advanced_configuration/tutorial007_py310.py hl[24:31] *}
 
 /// tip
 

docs/en/docs/advanced/response-change-status-code.md

@@ -20,7 +20,7 @@ You can declare a parameter of type `Response` in your *path operation function*
 
 And then you can set the `status_code` in that *temporal* response object.
 
-{* ../../docs_src/response_change_status_code/tutorial001_py39.py hl[1,9,12] *}
+{* ../../docs_src/response_change_status_code/tutorial001_py310.py hl[1,9,12] *}
 
 And then you can return any object you need, as you normally would (a `dict`, a database model, etc).
 

docs/en/docs/advanced/response-cookies.md

@@ -6,7 +6,7 @@ You can declare a parameter of type `Response` in your *path operation function*
 
 And then you can set cookies in that *temporal* response object.
 
-{* ../../docs_src/response_cookies/tutorial002_py39.py hl[1, 8:9] *}
+{* ../../docs_src/response_cookies/tutorial002_py310.py hl[1, 8:9] *}
 
 And then you can return any object you need, as you normally would (a `dict`, a database model, etc).
 
@@ -24,7 +24,7 @@ To do that, you can create a response as described in [Return a Response Directl
 
 Then set Cookies in it, and then return it:
 
-{* ../../docs_src/response_cookies/tutorial001_py39.py hl[10:12] *}
+{* ../../docs_src/response_cookies/tutorial001_py310.py hl[10:12] *}
 
 /// tip
 

docs/en/docs/advanced/response-directly.md

@@ -54,7 +54,7 @@ Let's say that you want to return an <a href="https://en.wikipedia.org/wiki/XML"
 
 You could put your XML content in a string, put that in a `Response`, and return it:
 
-{* ../../docs_src/response_directly/tutorial002_py39.py hl[1,18] *}
+{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}
 
 ## Notes { #notes }
 

docs/en/docs/advanced/response-headers.md

@@ -6,7 +6,7 @@ You can declare a parameter of type `Response` in your *path operation function*
 
 And then you can set headers in that *temporal* response object.
 
-{* ../../docs_src/response_headers/tutorial002_py39.py hl[1, 7:8] *}
+{* ../../docs_src/response_headers/tutorial002_py310.py hl[1, 7:8] *}
 
 And then you can return any object you need, as you normally would (a `dict`, a database model, etc).
 
@@ -22,7 +22,7 @@ You can also add headers when you return a `Response` directly.
 
 Create a response as described in [Return a Response Directly](response-directly.md){.internal-link target=_blank} and pass the headers as an additional parameter:
 
-{* ../../docs_src/response_headers/tutorial001_py39.py hl[10:12] *}
+{* ../../docs_src/response_headers/tutorial001_py310.py hl[10:12] *}
 
 /// note | Technical Details
 

docs/en/docs/advanced/security/http-basic-auth.md

@@ -20,7 +20,7 @@ Then, when you type that username and password, the browser sends them in the he
 * It returns an object of type `HTTPBasicCredentials`:
     * It contains the `username` and `password` sent.
 
-{* ../../docs_src/security/tutorial006_an_py39.py hl[4,8,12] *}
+{* ../../docs_src/security/tutorial006_an_py310.py hl[4,8,12] *}
 
 When you try to open the URL for the first time (or click the "Execute" button in the docs) the browser will ask you for your username and password:
 
@@ -40,7 +40,7 @@ To handle that, we first convert the `username` and `password` to `bytes` encodi
 
 Then we can use `secrets.compare_digest()` to ensure that `credentials.username` is `"stanleyjobson"`, and that `credentials.password` is `"swordfish"`.
 
-{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}
+{* ../../docs_src/security/tutorial007_an_py310.py hl[1,12:24] *}
 
 This would be similar to:
 
@@ -104,4 +104,4 @@ That way, using `secrets.compare_digest()` in your application code, it will be
 
 After detecting that the credentials are incorrect, return an `HTTPException` with a status code 401 (the same returned when no credentials are provided) and add the header `WWW-Authenticate` to make the browser show the login prompt again:
 
-{* ../../docs_src/security/tutorial007_an_py39.py hl[26:30] *}
+{* ../../docs_src/security/tutorial007_an_py310.py hl[26:30] *}

docs/en/docs/advanced/settings.md

@@ -54,7 +54,7 @@ The same way as with Pydantic models, you declare class attributes with type ann
 
 You can use all the same validation features and tools you use for Pydantic models, like different data types and additional validations with `Field()`.
 
-{* ../../docs_src/settings/tutorial001_py39.py hl[2,5:8,11] *}
+{* ../../docs_src/settings/tutorial001_py310.py hl[2,5:8,11] *}
 
 /// tip
 
@@ -70,7 +70,7 @@ Next it will convert and validate the data. So, when you use that `settings` obj
 
 Then you can use the new `settings` object in your application:
 
-{* ../../docs_src/settings/tutorial001_py39.py hl[18:20] *}
+{* ../../docs_src/settings/tutorial001_py310.py hl[18:20] *}
 
 ### Run the server { #run-the-server }
 
@@ -104,11 +104,11 @@ You could put those settings in another module file as you saw in [Bigger Applic
 
 For example, you could have a file `config.py` with:
 
-{* ../../docs_src/settings/app01_py39/config.py *}
+{* ../../docs_src/settings/app01_py310/config.py *}
 
 And then use it in a file `main.py`:
 
-{* ../../docs_src/settings/app01_py39/main.py hl[3,11:13] *}
+{* ../../docs_src/settings/app01_py310/main.py hl[3,11:13] *}
 
 /// tip
 
@@ -126,7 +126,7 @@ This could be especially useful during testing, as it's very easy to override a
 
 Coming from the previous example, your `config.py` file could look like:
 
-{* ../../docs_src/settings/app02_an_py39/config.py hl[10] *}
+{* ../../docs_src/settings/app02_an_py310/config.py hl[10] *}
 
 Notice that now we don't create a default instance `settings = Settings()`.
 
@@ -134,7 +134,7 @@ Notice that now we don't create a default instance `settings = Settings()`.
 
 Now we create a dependency that returns a new `config.Settings()`.
 
-{* ../../docs_src/settings/app02_an_py39/main.py hl[6,12:13] *}
+{* ../../docs_src/settings/app02_an_py310/main.py hl[6,12:13] *}
 
 /// tip
 
@@ -146,13 +146,13 @@ For now you can assume `get_settings()` is a normal function.
 
 And then we can require it from the *path operation function* as a dependency and use it anywhere we need it.
 
-{* ../../docs_src/settings/app02_an_py39/main.py hl[17,19:21] *}
+{* ../../docs_src/settings/app02_an_py310/main.py hl[17,19:21] *}
 
 ### Settings and testing { #settings-and-testing }
 
 Then it would be very easy to provide a different settings object during testing by creating a dependency override for `get_settings`:
 
-{* ../../docs_src/settings/app02_an_py39/test_main.py hl[9:10,13,21] *}
+{* ../../docs_src/settings/app02_an_py310/test_main.py hl[9:10,13,21] *}
 
 In the dependency override we set a new value for the `admin_email` when creating the new `Settings` object, and then we return that new object.
 
@@ -193,7 +193,7 @@ APP_NAME="ChimichangApp"
 
 And then update your `config.py` with:
 
-{* ../../docs_src/settings/app03_an_py39/config.py hl[9] *}
+{* ../../docs_src/settings/app03_an_py310/config.py hl[9] *}
 
 /// tip
 
@@ -226,7 +226,7 @@ we would create that object for each request, and we would be reading the `.env`
 
 But as we are using the `@lru_cache` decorator on top, the `Settings` object will be created only once, the first time it's called. ✔️
 
-{* ../../docs_src/settings/app03_an_py39/main.py hl[1,11] *}
+{* ../../docs_src/settings/app03_an_py310/main.py hl[1,11] *}
 
 Then for any subsequent call of `get_settings()` in the dependencies for the next requests, instead of executing the internal code of `get_settings()` and creating a new `Settings` object, it will return the same object that was returned on the first call, again and again.
 

docs/en/docs/advanced/sub-applications.md

@@ -10,7 +10,7 @@ If you need to have two independent FastAPI applications, with their own indepen
 
 First, create the main, top-level, **FastAPI** application, and its *path operations*:
 
-{* ../../docs_src/sub_applications/tutorial001_py39.py hl[3, 6:8] *}
+{* ../../docs_src/sub_applications/tutorial001_py310.py hl[3, 6:8] *}
 
 ### Sub-application { #sub-application }
 
@@ -18,7 +18,7 @@ Then, create your sub-application, and its *path operations*.
 
 This sub-application is just another standard FastAPI application, but this is the one that will be "mounted":
 
-{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 14:16] *}
+{* ../../docs_src/sub_applications/tutorial001_py310.py hl[11, 14:16] *}
 
 ### Mount the sub-application { #mount-the-sub-application }
 
@@ -26,7 +26,7 @@ In your top-level application, `app`, mount the sub-application, `subapi`.
 
 In this case, it will be mounted at the path `/subapi`:
 
-{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 19] *}
+{* ../../docs_src/sub_applications/tutorial001_py310.py hl[11, 19] *}
 
 ### Check the automatic API docs { #check-the-automatic-api-docs }
 

docs/en/docs/advanced/templates.md

@@ -27,7 +27,7 @@ $ pip install jinja2
 * Declare a `Request` parameter in the *path operation* that will return a template.
 * Use the `templates` you created to render and return a `TemplateResponse`, pass the name of the template, the request object, and a "context" dictionary with key-value pairs to be used inside of the Jinja2 template.
 
-{* ../../docs_src/templates/tutorial001_py39.py hl[4,11,15:18] *}
+{* ../../docs_src/templates/tutorial001_py310.py hl[4,11,15:18] *}
 
 /// note
 

docs/en/docs/advanced/testing-events.md

@@ -2,11 +2,11 @@
 
 When you need `lifespan` to run in your tests, you can use the `TestClient` with a `with` statement:
 
-{* ../../docs_src/app_testing/tutorial004_py39.py hl[9:15,18,27:28,30:32,41:43] *}
+{* ../../docs_src/app_testing/tutorial004_py310.py hl[9:15,18,27:28,30:32,41:43] *}
 
 
 You can read more details about the ["Running lifespan in tests in the official Starlette documentation site."](https://www.starlette.dev/lifespan/#running-lifespan-in-tests)
 
 For the deprecated `startup` and `shutdown` events, you can use the `TestClient` as follows:
 
-{* ../../docs_src/app_testing/tutorial003_py39.py hl[9:12,20:24] *}
+{* ../../docs_src/app_testing/tutorial003_py310.py hl[9:12,20:24] *}

docs/en/docs/advanced/testing-websockets.md

@@ -4,7 +4,7 @@ You can use the same `TestClient` to test WebSockets.
 
 For this, you use the `TestClient` in a `with` statement, connecting to the WebSocket:
 
-{* ../../docs_src/app_testing/tutorial002_py39.py hl[27:31] *}
+{* ../../docs_src/app_testing/tutorial002_py310.py hl[27:31] *}
 
 /// note
 

docs/en/docs/advanced/using-request-directly.md

@@ -29,7 +29,7 @@ Let's imagine you want to get the client's IP address/host inside of your *path
 
 For that you need to access the request directly.
 
-{* ../../docs_src/using_request_directly/tutorial001_py39.py hl[1,7:8] *}
+{* ../../docs_src/using_request_directly/tutorial001_py310.py hl[1,7:8] *}
 
 By declaring a *path operation function* parameter with the type being the `Request` **FastAPI** will know to pass the `Request` in that parameter.
 

docs/en/docs/advanced/websockets.md

@@ -38,13 +38,13 @@ In production you would have one of the options above.
 
 But it's the simplest way to focus on the server-side of WebSockets and have a working example:
 
-{* ../../docs_src/websockets/tutorial001_py39.py hl[2,6:38,41:43] *}
+{* ../../docs_src/websockets/tutorial001_py310.py hl[2,6:38,41:43] *}
 
 ## Create a `websocket` { #create-a-websocket }
 
 In your **FastAPI** application, create a `websocket`:
 
-{* ../../docs_src/websockets/tutorial001_py39.py hl[1,46:47] *}
+{* ../../docs_src/websockets/tutorial001_py310.py hl[1,46:47] *}
 
 /// note | Technical Details
 
@@ -58,7 +58,7 @@ You could also use `from starlette.websockets import WebSocket`.
 
 In your WebSocket route you can `await` for messages and send messages.
 
-{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}
+{* ../../docs_src/websockets/tutorial001_py310.py hl[48:52] *}
 
 You can receive and send binary, text, and JSON data.
 
@@ -154,7 +154,7 @@ With that you can connect the WebSocket and then send and receive messages:
 
 When a WebSocket connection is closed, the `await websocket.receive_text()` will raise a `WebSocketDisconnect` exception, which you can then catch and handle like in this example.
 
-{* ../../docs_src/websockets/tutorial003_py39.py hl[79:81] *}
+{* ../../docs_src/websockets/tutorial003_py310.py hl[79:81] *}
 
 To try it out:
 

docs/en/docs/advanced/wsgi.md

@@ -18,7 +18,7 @@ Then wrap the WSGI (e.g. Flask) app with the middleware.
 
 And then mount that under a path.
 
-{* ../../docs_src/wsgi/tutorial001_py39.py hl[1,3,23] *}
+{* ../../docs_src/wsgi/tutorial001_py310.py hl[1,3,23] *}
 
 /// note
 

docs/en/docs/alternatives.md

@@ -137,7 +137,7 @@ There are several Flask REST frameworks, but after investing the time and work i
 
 ### <a href="https://marshmallow.readthedocs.io/en/stable/" class="external-link" target="_blank">Marshmallow</a> { #marshmallow }
 
-One of the main features needed by API systems is data "<abbr title="also called marshalling, conversion">serialization</abbr>" which is taking data from the code (Python) and converting it into something that can be sent through the network. For example, converting an object containing data from a database into a JSON object. Converting `datetime` objects into strings, etc.
+One of the main features needed by API systems is data "<dfn title="also called marshalling, conversion">serialization</dfn>" which is taking data from the code (Python) and converting it into something that can be sent through the network. For example, converting an object containing data from a database into a JSON object. Converting `datetime` objects into strings, etc.
 
 Another big feature needed by APIs is data validation, making sure that the data is valid, given certain parameters. For example, that some field is an `int`, and not some random string. This is especially useful for incoming data.
 
@@ -145,7 +145,7 @@ Without a data validation system, you would have to do all the checks by hand, i
 
 These features are what Marshmallow was built to provide. It is a great library, and I have used it a lot before.
 
-But it was created before there existed Python type hints. So, to define every <abbr title="the definition of how data should be formed">schema</abbr> you need to use specific utils and classes provided by Marshmallow.
+But it was created before there existed Python type hints. So, to define every <dfn title="the definition of how data should be formed">schema</dfn> you need to use specific utils and classes provided by Marshmallow.
 
 /// check | Inspired **FastAPI** to
 
@@ -155,7 +155,7 @@ Use code to define "schemas" that provide data types and validation, automatical
 
 ### <a href="https://webargs.readthedocs.io/en/latest/" class="external-link" target="_blank">Webargs</a> { #webargs }
 
-Another big feature required by APIs is <abbr title="reading and converting to Python data">parsing</abbr> data from incoming requests.
+Another big feature required by APIs is <dfn title="reading and converting to Python data">parsing</dfn> data from incoming requests.
 
 Webargs is a tool that was made to provide that on top of several frameworks, including Flask.
 
@@ -419,7 +419,7 @@ Handle all the data validation, data serialization and automatic model documenta
 
 ### <a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a> { #starlette }
 
-Starlette is a lightweight <abbr title="The new standard for building asynchronous Python web applications">ASGI</abbr> framework/toolkit, which is ideal for building high-performance asyncio services.
+Starlette is a lightweight <dfn title="The new standard for building asynchronous Python web applications">ASGI</dfn> framework/toolkit, which is ideal for building high-performance asyncio services.
 
 It is very simple and intuitive. It's designed to be easily extensible, and have modular components.
 

docs/en/docs/css/custom.css

@@ -203,3 +203,8 @@ Inspired by Termynal's CSS tricks with modifications
   -webkit-box-shadow: 25px 0 0 #f4c025, 50px 0 0 #3ec930;
           box-shadow: 25px 0 0 #f4c025, 50px 0 0 #3ec930;
 }
+
+.md-typeset dfn {
+  border-bottom: .05rem dotted var(--md-default-fg-color--light);
+  cursor: help;
+}

docs/en/docs/deployment/docker.md

@@ -14,7 +14,7 @@ In a hurry and already know this stuff? Jump to the [`Dockerfile` below 👇](#b
 <summary>Dockerfile Preview 👀</summary>
 
 ```Dockerfile
-FROM python:3.9
+FROM python:3.14
 
 WORKDIR /code
 
@@ -166,7 +166,7 @@ Now in the same project directory create a file `Dockerfile` with:
 
 ```{ .dockerfile .annotate }
 # (1)!
-FROM python:3.9
+FROM python:3.14
 
 # (2)!
 WORKDIR /code
@@ -390,7 +390,7 @@ If your FastAPI is a single file, for example, `main.py` without an `./app` dire
 Then you would just have to change the corresponding paths to copy the file inside the `Dockerfile`:
 
 ```{ .dockerfile .annotate hl_lines="10  13" }
-FROM python:3.9
+FROM python:3.14
 
 WORKDIR /code
 
@@ -454,7 +454,7 @@ Without using containers, making applications run on startup and with restarts c
 
 ## Replication - Number of Processes { #replication-number-of-processes }
 
-If you have a <abbr title="A group of machines that are configured to be connected and work together in some way.">cluster</abbr> of machines with **Kubernetes**, Docker Swarm Mode, Nomad, or another similar complex system to manage distributed containers on multiple machines, then you will probably want to **handle replication** at the **cluster level** instead of using a **process manager** (like Uvicorn with workers) in each container.
+If you have a <dfn title="A group of machines that are configured to be connected and work together in some way.">cluster</dfn> of machines with **Kubernetes**, Docker Swarm Mode, Nomad, or another similar complex system to manage distributed containers on multiple machines, then you will probably want to **handle replication** at the **cluster level** instead of using a **process manager** (like Uvicorn with workers) in each container.
 
 One of those distributed container management systems like Kubernetes normally has some integrated way of handling **replication of containers** while still supporting **load balancing** for the incoming requests. All at the **cluster level**.
 
@@ -499,7 +499,7 @@ Of course, there are **special cases** where you could want to have **a containe
 In those cases, you can use the `--workers` command line option to set the number of workers that you want to run:
 
 ```{ .dockerfile .annotate }
-FROM python:3.9
+FROM python:3.14
 
 WORKDIR /code
 

docs/en/docs/deployment/https.md

@@ -65,7 +65,7 @@ Here's an example of how an HTTPS API could look like, step by step, paying atte
 
 It would probably all start by you **acquiring** some **domain name**. Then, you would configure it in a DNS server (possibly your same cloud provider).
 
-You would probably get a cloud server (a virtual machine) or something similar, and it would have a <abbr title="That doesn't change">fixed</abbr> **public IP address**.
+You would probably get a cloud server (a virtual machine) or something similar, and it would have a <dfn title="Doesn't change over time. Not dynamic.">fixed</dfn> **public IP address**.
 
 In the DNS server(s) you would configure a record (an "`A record`") to point **your domain** to the public **IP address of your server**.
 

docs/en/docs/features.md

@@ -6,7 +6,7 @@
 
 ### Based on open standards { #based-on-open-standards }
 
-* <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a> for API creation, including declarations of <abbr title="also known as: endpoints, routes">path</abbr> <abbr title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</abbr>, parameters, request bodies, security, etc.
+* <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a> for API creation, including declarations of <dfn title="also known as: endpoints, routes">path</dfn> <dfn title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</dfn>, parameters, request bodies, security, etc.
 * Automatic data model documentation with <a href="https://json-schema.org/" class="external-link" target="_blank"><strong>JSON Schema</strong></a> (as OpenAPI itself is based on JSON Schema).
 * Designed around these standards, after a meticulous study. Instead of an afterthought layer on top.
 * This also allows using automatic **client code generation** in many languages.
@@ -136,7 +136,7 @@ All built as reusable tools and components that are easy to integrate with your
 
 ### Dependency Injection { #dependency-injection }
 
-FastAPI includes an extremely easy to use, but extremely powerful <abbr title='also known as "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></abbr> system.
+FastAPI includes an extremely easy to use, but extremely powerful <dfn title='also known as "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></dfn> system.
 
 * Even dependencies can have dependencies, creating a hierarchy or **"graph" of dependencies**.
 * All **automatically handled** by the framework.
@@ -153,8 +153,8 @@ Any integration is designed to be so simple to use (with dependencies) that you
 
 ### Tested { #tested }
 
-* 100% <abbr title="The amount of code that is automatically tested">test coverage</abbr>.
-* 100% <abbr title="Python type annotations, with this your editor and external tools can give you better support">type annotated</abbr> code base.
+* 100% <dfn title="The amount of code that is automatically tested">test coverage</dfn>.
+* 100% <dfn title="Python type annotations, with this your editor and external tools can give you better support">type annotated</dfn> code base.
 * Used in production applications.
 
 ## Starlette features { #starlette-features }
@@ -190,7 +190,7 @@ With **FastAPI** you get all of **Pydantic**'s features (as FastAPI is based on
 * **No brainfuck**:
     * No new schema definition micro-language to learn.
     * If you know Python types you know how to use Pydantic.
-* Plays nicely with your **<abbr title="Integrated Development Environment: similar to a code editor">IDE</abbr>/<abbr title="A program that checks for code errors">linter</abbr>/brain**:
+* Plays nicely with your **<abbr title="Integrated Development Environment: similar to a code editor">IDE</abbr>/<dfn title="A program that checks for code errors">linter</dfn>/brain**:
     * Because pydantic data structures are just instances of classes you define; auto-completion, linting, mypy and your intuition should all work properly with your validated data.
 * Validate **complex structures**:
     * Use of hierarchical Pydantic models, Python `typing`’s `List` and `Dict`, etc.

docs/en/docs/how-to/authentication-error-status-code.md

@@ -8,7 +8,7 @@ But if for some reason your clients depend on the old behavior, you can revert t
 
 For example, you can create a subclass of `HTTPBearer` that returns a `403 Forbidden` error instead of the default `401 Unauthorized` error:
 
-{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}
+{* ../../docs_src/authentication_error_status_code/tutorial001_an_py310.py hl[9:13] *}
 
 /// tip
 

docs/en/docs/how-to/conditional-openapi.md

@@ -29,7 +29,7 @@ You can easily use the same Pydantic settings to configure your generated OpenAP
 
 For example:
 
-{* ../../docs_src/conditional_openapi/tutorial001_py39.py hl[6,11] *}
+{* ../../docs_src/conditional_openapi/tutorial001_py310.py hl[6,11] *}
 
 Here we declare the setting `openapi_url` with the same default of `"/openapi.json"`.
 

docs/en/docs/how-to/configure-swagger-ui.md

@@ -18,7 +18,7 @@ Without changing the settings, syntax highlighting is enabled by default:
 
 But you can disable it by setting `syntaxHighlight` to `False`:
 
-{* ../../docs_src/configure_swagger_ui/tutorial001_py39.py hl[3] *}
+{* ../../docs_src/configure_swagger_ui/tutorial001_py310.py hl[3] *}
 
 ...and then Swagger UI won't show the syntax highlighting anymore:
 
@@ -28,7 +28,7 @@ But you can disable it by setting `syntaxHighlight` to `False`:
 
 The same way you could set the syntax highlighting theme with the key `"syntaxHighlight.theme"` (notice that it has a dot in the middle):
 
-{* ../../docs_src/configure_swagger_ui/tutorial002_py39.py hl[3] *}
+{* ../../docs_src/configure_swagger_ui/tutorial002_py310.py hl[3] *}
 
 That configuration would change the syntax highlighting color theme:
 
@@ -46,7 +46,7 @@ You can override any of them by setting a different value in the argument `swagg
 
 For example, to disable `deepLinking` you could pass these settings to `swagger_ui_parameters`:
 
-{* ../../docs_src/configure_swagger_ui/tutorial003_py39.py hl[3] *}
+{* ../../docs_src/configure_swagger_ui/tutorial003_py310.py hl[3] *}
 
 ## Other Swagger UI Parameters { #other-swagger-ui-parameters }
 

docs/en/docs/how-to/custom-docs-ui-assets.md

@@ -18,7 +18,7 @@ The first step is to disable the automatic docs, as by default, those use the de
 
 To disable them, set their URLs to `None` when creating your `FastAPI` app:
 
-{* ../../docs_src/custom_docs_ui/tutorial001_py39.py hl[8] *}
+{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[8] *}
 
 ### Include the custom docs { #include-the-custom-docs }
 
@@ -34,7 +34,7 @@ You can reuse FastAPI's internal functions to create the HTML pages for the docs
 
 And similarly for ReDoc...
 
-{* ../../docs_src/custom_docs_ui/tutorial001_py39.py hl[2:6,11:19,22:24,27:33] *}
+{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[2:6,11:19,22:24,27:33] *}
 
 /// tip
 
@@ -50,7 +50,7 @@ Swagger UI will handle it behind the scenes for you, but it needs this "redirect
 
 Now, to be able to test that everything works, create a *path operation*:
 
-{* ../../docs_src/custom_docs_ui/tutorial001_py39.py hl[36:38] *}
+{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[36:38] *}
 
 ### Test it { #test-it }
 
@@ -118,7 +118,7 @@ After that, your file structure could look like:
 * Import `StaticFiles`.
 * "Mount" a `StaticFiles()` instance in a specific path.
 
-{* ../../docs_src/custom_docs_ui/tutorial002_py39.py hl[7,11] *}
+{* ../../docs_src/custom_docs_ui/tutorial002_py310.py hl[7,11] *}
 
 ### Test the static files { #test-the-static-files }
 
@@ -144,7 +144,7 @@ The same as when using a custom CDN, the first step is to disable the automatic
 
 To disable them, set their URLs to `None` when creating your `FastAPI` app:
 
-{* ../../docs_src/custom_docs_ui/tutorial002_py39.py hl[9] *}
+{* ../../docs_src/custom_docs_ui/tutorial002_py310.py hl[9] *}
 
 ### Include the custom docs for static files { #include-the-custom-docs-for-static-files }
 
@@ -160,7 +160,7 @@ Again, you can reuse FastAPI's internal functions to create the HTML pages for t
 
 And similarly for ReDoc...
 
-{* ../../docs_src/custom_docs_ui/tutorial002_py39.py hl[2:6,14:22,25:27,30:36] *}
+{* ../../docs_src/custom_docs_ui/tutorial002_py310.py hl[2:6,14:22,25:27,30:36] *}
 
 /// tip
 
@@ -176,7 +176,7 @@ Swagger UI will handle it behind the scenes for you, but it needs this "redirect
 
 Now, to be able to test that everything works, create a *path operation*:
 
-{* ../../docs_src/custom_docs_ui/tutorial002_py39.py hl[39:41] *}
+{* ../../docs_src/custom_docs_ui/tutorial002_py310.py hl[39:41] *}
 
 ### Test Static Files UI { #test-static-files-ui }
 

docs/en/docs/how-to/extending-openapi.md

@@ -43,19 +43,19 @@ For example, let's add <a href="https://github.com/Rebilly/ReDoc/blob/master/doc
 
 First, write all your **FastAPI** application as normally:
 
-{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[1,4,7:9] *}
+{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[1,4,7:9] *}
 
 ### Generate the OpenAPI schema { #generate-the-openapi-schema }
 
 Then, use the same utility function to generate the OpenAPI schema, inside a `custom_openapi()` function:
 
-{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[2,15:21] *}
+{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[2,15:21] *}
 
 ### Modify the OpenAPI schema { #modify-the-openapi-schema }
 
 Now you can add the ReDoc extension, adding a custom `x-logo` to the `info` "object" in the OpenAPI schema:
 
-{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[22:24] *}
+{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[22:24] *}
 
 ### Cache the OpenAPI schema { #cache-the-openapi-schema }
 
@@ -65,13 +65,13 @@ That way, your application won't have to generate the schema every time a user o
 
 It will be generated only once, and then the same cached schema will be used for the next requests.
 
-{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[13:14,25:26] *}
+{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[13:14,25:26] *}
 
 ### Override the method { #override-the-method }
 
 Now you can replace the `.openapi()` method with your new function.
 
-{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[29] *}
+{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[29] *}
 
 ### Check it { #check-it }
 

docs/en/docs/how-to/graphql.md

@@ -35,7 +35,7 @@ Depending on your use case, you might prefer to use a different library, but if
 
 Here's a small preview of how you could integrate Strawberry with FastAPI:
 
-{* ../../docs_src/graphql_/tutorial001_py39.py hl[3,22,25] *}
+{* ../../docs_src/graphql_/tutorial001_py310.py hl[3,22,25] *}
 
 You can learn more about Strawberry in the <a href="https://strawberry.rocks/" class="external-link" target="_blank">Strawberry documentation</a>.
 

docs/en/docs/index.md

@@ -40,7 +40,7 @@ The key features are:
 * **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
 * **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.
+* **Intuitive**: Great editor support. <dfn title="also known as auto-complete, autocompletion, IntelliSense">Completion</dfn> 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.
@@ -368,7 +368,7 @@ item: Item
 * 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:
+* <dfn title="also known as: serialization, parsing, marshalling">Conversion</dfn> of input data: coming from the network to Python data and types. Reading from:
     * JSON.
     * Path parameters.
     * Query parameters.
@@ -376,7 +376,7 @@ item: Item
     * 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):
+* <dfn title="also known as: serialization, parsing, marshalling">Conversion</dfn> 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.
@@ -439,7 +439,7 @@ For a more complete example including more features, see the <a href="https://fa
 
 * 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.
+* A very powerful and easy to use **<dfn title="also known as components, resources, providers, services, injectables">Dependency Injection</dfn>** 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).
 * **GraphQL** integration with <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> and other libraries.
@@ -524,7 +524,7 @@ Used by Starlette:
 
 * <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Required if you want to use the `TestClient`.
 * <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://github.com/Kludex/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://github.com/Kludex/python-multipart" target="_blank"><code>python-multipart</code></a> - Required if you want to support form <dfn title="converting the string that comes from an HTTP request into Python data">"parsing"</dfn>, with `request.form()`.
 
 Used by FastAPI:
 

docs/en/docs/python-types.md

@@ -2,7 +2,7 @@
 
 Python has support for optional "type hints" (also called "type annotations").
 
-These **"type hints"** or annotations are a special syntax that allow declaring the <abbr title="for example: str, int, float, bool">type</abbr> of a variable.
+These **"type hints"** or annotations are a special syntax that allow declaring the <dfn title="for example: str, int, float, bool">type</dfn> of a variable.
 
 By declaring types for your variables, editors and tools can give you better support.
 
@@ -22,7 +22,7 @@ If you are a Python expert, and you already know everything about type hints, sk
 
 Let's start with a simple example:
 
-{* ../../docs_src/python_types/tutorial001_py39.py *}
+{* ../../docs_src/python_types/tutorial001_py310.py *}
 
 Calling this program outputs:
 
@@ -34,9 +34,9 @@ The function does the following:
 
 * Takes a `first_name` and `last_name`.
 * Converts the first letter of each one to upper case with `title()`.
-* <abbr title="Puts them together, as one. With the contents of one after the other.">Concatenates</abbr> them with a space in the middle.
+* <dfn title="Puts them together, as one. With the contents of one after the other.">Concatenates</dfn> them with a space in the middle.
 
-{* ../../docs_src/python_types/tutorial001_py39.py hl[2] *}
+{* ../../docs_src/python_types/tutorial001_py310.py hl[2] *}
 
 ### Edit it { #edit-it }
 
@@ -78,7 +78,7 @@ That's it.
 
 Those are the "type hints":
 
-{* ../../docs_src/python_types/tutorial002_py39.py hl[1] *}
+{* ../../docs_src/python_types/tutorial002_py310.py hl[1] *}
 
 That is not the same as declaring default values like would be with:
 
@@ -106,7 +106,7 @@ With that, you can scroll, seeing the options, until you find the one that "ring
 
 Check this function, it already has type hints:
 
-{* ../../docs_src/python_types/tutorial003_py39.py hl[1] *}
+{* ../../docs_src/python_types/tutorial003_py310.py hl[1] *}
 
 Because the editor knows the types of the variables, you don't only get completion, you also get error checks:
 
@@ -114,7 +114,7 @@ Because the editor knows the types of the variables, you don't only get completi
 
 Now you know that you have to fix it, convert `age` to a string with `str(age)`:
 
-{* ../../docs_src/python_types/tutorial004_py39.py hl[2] *}
+{* ../../docs_src/python_types/tutorial004_py310.py hl[2] *}
 
 ## Declaring types { #declaring-types }
 
@@ -133,29 +133,32 @@ You can use, for example:
 * `bool`
 * `bytes`
 
-{* ../../docs_src/python_types/tutorial005_py39.py hl[1] *}
+{* ../../docs_src/python_types/tutorial005_py310.py hl[1] *}
 
-### Generic types with type parameters { #generic-types-with-type-parameters }
+### `typing` module { #typing-module }
 
-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.
+For some additional use cases, you might need to import some things from the standard library `typing` module, for example when you want to declare that something has "any type", you can use `Any` from `typing`:
 
-These types that have internal types are called "**generic**" types. And it's possible to declare them, even with their internal types.
+```python
+from typing import Any
 
-To declare those types and the internal types, you can use the standard Python module `typing`. It exists specifically to support these type hints.
 
-#### Newer versions of Python { #newer-versions-of-python }
+def some_function(data: Any):
+    print(data)
+```
 
-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.
+### Generic types { #generic-types }
 
-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.
+Some types can take "type parameters" in square brackets, to define their internal types, for example a "list of strings" would be declared `list[str]`.
 
-If you can choose a more recent version of Python for your project, you will be able to take advantage of that extra simplicity.
+These types that can take type parameters are called **Generic types** or **Generics**.
 
-In all the docs there are examples compatible with each version of Python (when there's a difference).
+You can use the same builtin types as generics (with square brackets and types inside):
 
-For example "**Python 3.6+**" means it's compatible with Python 3.6 or above (including 3.7, 3.8, 3.9, 3.10, etc). And "**Python 3.9+**" means it's compatible with Python 3.9 or above (including 3.10, etc).
-
-If you can use the **latest versions of Python**, use the examples for the latest version, those will have the **best and simplest syntax**, for example, "**Python 3.10+**".
+* `list`
+* `tuple`
+* `set`
+* `dict`
 
 #### List { #list }
 
@@ -167,7 +170,7 @@ As the type, put `list`.
 
 As the list is a type that contains some internal types, you put them in square brackets:
 
-{* ../../docs_src/python_types/tutorial006_py39.py hl[1] *}
+{* ../../docs_src/python_types/tutorial006_py310.py hl[1] *}
 
 /// info
 
@@ -193,7 +196,7 @@ And still, the editor knows it is a `str`, and provides support for that.
 
 You would do the same to declare `tuple`s and `set`s:
 
-{* ../../docs_src/python_types/tutorial007_py39.py hl[1] *}
+{* ../../docs_src/python_types/tutorial007_py310.py hl[1] *}
 
 This means:
 
@@ -208,7 +211,7 @@ The first type parameter is for the keys of the `dict`.
 
 The second type parameter is for the values of the `dict`:
 
-{* ../../docs_src/python_types/tutorial008_py39.py hl[1] *}
+{* ../../docs_src/python_types/tutorial008_py310.py hl[1] *}
 
 This means:
 
@@ -220,44 +223,20 @@ This means:
 
 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.
+To define it you use the <dfn title='also called "bitwise or operator", but that meaning is not relevant here'>vertical bar (`|`)</dfn> to separate both types.
 
-In Python 3.10 there's also a **new syntax** where 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>.
-
-//// tab | Python 3.10+
+This is called a "union", because the variable can be anything in the union of those two sets of types.
 
 ```Python hl_lines="1"
 {!> ../../docs_src/python_types/tutorial008b_py310.py!}
 ```
 
-////
-
-//// tab | Python 3.9+
-
-```Python hl_lines="1  4"
-{!> ../../docs_src/python_types/tutorial008b_py39.py!}
-```
-
-////
-
-In both cases this means that `item` could be an `int` or a `str`.
+This means that `item` could be an `int` or a `str`.
 
 #### Possibly `None` { #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_py39.py!}
-```
-
-Using `Optional[str]` instead of just `str` will let the editor help you detect 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`:
-
 //// tab | Python 3.10+
 
 ```Python hl_lines="1"
@@ -266,96 +245,7 @@ This also means that in Python 3.10, you can use `Something | None`:
 
 ////
 
-//// tab | Python 3.9+
-
-```Python hl_lines="1  4"
-{!> ../../docs_src/python_types/tutorial009_py39.py!}
-```
-
-////
-
-//// tab | Python 3.9+ alternative
-
-```Python hl_lines="1  4"
-{!> ../../docs_src/python_types/tutorial009b_py39.py!}
-```
-
-////
-
-#### Using `Union` or `Optional` { #using-union-or-optional }
-
-If you are using a Python version below 3.10, here's a tip from my very **subjective** point of view:
-
-* 🚨 Avoid using `Optional[SomeType]`
-* Instead ✨ **use `Union[SomeType, None]`** ✨.
-
-Both are equivalent and underneath they are the same, but I would recommend `Union` instead of `Optional` because the word "**optional**" would seem to imply that the value is optional, and it actually means "it can be `None`", even if it's not optional and is still required.
-
-I think `Union[SomeType, None]` is more explicit about what it means.
-
-It's just about the words and names. But those words can affect how you and your teammates think about the code.
-
-As an example, let's take this function:
-
-{* ../../docs_src/python_types/tutorial009c_py39.py hl[1,4] *}
-
-The parameter `name` is defined as `Optional[str]`, but it is **not optional**, you cannot call the function without the parameter:
-
-```Python
-say_hi()  # Oh, no, this throws an error! 😱
-```
-
-The `name` parameter is **still required** (not *optional*) because it doesn't have a default value. Still, `name` accepts `None` as the value:
-
-```Python
-say_hi(name=None)  # This works, None is valid 🎉
-```
-
-The good news is, once you are on Python 3.10 you won't have to worry about that, as you will be able to simply use `|` to define unions of types:
-
-{* ../../docs_src/python_types/tutorial009c_py310.py hl[1,4] *}
-
-And then you won't have to worry about names like `Optional` and `Union`. 😎
-
-#### Generic types { #generic-types }
-
-These types that take type parameters in square brackets are called **Generic types** or **Generics**, for example:
-
-//// tab | Python 3.10+
-
-You can use the same builtin types as generics (with square brackets and types inside):
-
-* `list`
-* `tuple`
-* `set`
-* `dict`
-
-And the same as with previous Python versions, from the `typing` module:
-
-* `Union`
-* `Optional`
-* ...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, that's a lot better and simpler.
-
-////
-
-//// tab | Python 3.9+
-
-You can use the same builtin types as generics (with square brackets and types inside):
-
-* `list`
-* `tuple`
-* `set`
-* `dict`
-
-And generics from the `typing` module:
-
-* `Union`
-* `Optional`
-* ...and others.
-
-////
+Using `str | None` instead of just `str` will let the editor help you detect errors where you could be assuming that a value is always a `str`, when it could actually be `None` too.
 
 ### Classes as types { #classes-as-types }
 
@@ -363,11 +253,11 @@ You can also declare a class as the type of a variable.
 
 Let's say you have a class `Person`, with a name:
 
-{* ../../docs_src/python_types/tutorial010_py39.py hl[1:3] *}
+{* ../../docs_src/python_types/tutorial010_py310.py hl[1:3] *}
 
 Then you can declare a variable to be of type `Person`:
 
-{* ../../docs_src/python_types/tutorial010_py39.py hl[6] *}
+{* ../../docs_src/python_types/tutorial010_py310.py hl[6] *}
 
 And then, again, you get all the editor support:
 
@@ -403,19 +293,13 @@ To learn more about <a href="https://docs.pydantic.dev/" class="external-link" t
 
 You will see a lot more of all this in practice in the [Tutorial - User Guide](tutorial/index.md){.internal-link target=_blank}.
 
-/// tip
-
-Pydantic has a special behavior when you use `Optional` or `Union[Something, None]` without a default value, you can read more about it in the Pydantic docs about <a href="https://docs.pydantic.dev/2.3/usage/models/#required-fields" class="external-link" target="_blank">Required Optional fields</a>.
-
-///
-
 ## Type Hints with Metadata Annotations { #type-hints-with-metadata-annotations }
 
-Python also has a feature that allows putting **additional <abbr title="Data about the data, in this case, information about the type, e.g. a description.">metadata</abbr>** in these type hints using `Annotated`.
+Python also has a feature that allows putting **additional <dfn title="Data about the data, in this case, information about the type, e.g. a description.">metadata</dfn>** in these type hints using `Annotated`.
 
-Since Python 3.9, `Annotated` is a part of the standard library, so you can import it from `typing`.
+You can import `Annotated` from `typing`.
 
-{* ../../docs_src/python_types/tutorial013_py39.py hl[1,4] *}
+{* ../../docs_src/python_types/tutorial013_py310.py hl[1,4] *}
 
 Python itself doesn't do anything with this `Annotated`. And for editors and other tools, the type is still `str`.
 

docs/en/docs/release-notes.md

@@ -7,6 +7,47 @@ hide:
 
 ## Latest Changes
 
+### Breaking Changes
+
+* ➖ Drop support for Python 3.9. PR [#14897](https://github.com/fastapi/fastapi/pull/14897) by [@tiangolo](https://github.com/tiangolo).
+
+### Refactors
+
+* 🎨 Update internal types for Python 3.10. PR [#14898](https://github.com/fastapi/fastapi/pull/14898) by [@tiangolo](https://github.com/tiangolo).
+
+## 0.128.8
+
+### Docs
+
+* 📝 Fix grammar in `docs/en/docs/tutorial/first-steps.md`. PR [#14708](https://github.com/fastapi/fastapi/pull/14708) by [@SanjanaS10](https://github.com/SanjanaS10).
+
+### Internal
+
+* 🔨 Tweak PDM hook script. PR [#14895](https://github.com/fastapi/fastapi/pull/14895) by [@tiangolo](https://github.com/tiangolo).
+* ♻️ Update build setup for `fastapi-slim`, deprecate it, and make it only depend on `fastapi`. PR [#14894](https://github.com/fastapi/fastapi/pull/14894) by [@tiangolo](https://github.com/tiangolo).
+
+## 0.128.7
+
+### Features
+
+* ✨ Show a clear error on attempt to include router into itself. PR [#14258](https://github.com/fastapi/fastapi/pull/14258) by [@JavierSanchezCastro](https://github.com/JavierSanchezCastro).
+* ✨ Replace `dict` by `Mapping` on `HTTPException.headers`. PR [#12997](https://github.com/fastapi/fastapi/pull/12997) by [@rijenkii](https://github.com/rijenkii).
+
+### Refactors
+
+* ♻️ Simplify reading files in memory, do it sequentially instead of (fake) parallel. PR [#14884](https://github.com/fastapi/fastapi/pull/14884) by [@tiangolo](https://github.com/tiangolo).
+
+### Docs
+
+* 📝 Use `dfn` tag for definitions instead of `abbr` in docs. PR [#14744](https://github.com/fastapi/fastapi/pull/14744) by [@YuriiMotov](https://github.com/YuriiMotov).
+
+### Internal
+
+* ✅ Tweak comment in test to reference PR. PR [#14885](https://github.com/fastapi/fastapi/pull/14885) by [@tiangolo](https://github.com/tiangolo).
+* 🔧 Update LLM-prompt for `abbr` and `dfn` tags. PR [#14747](https://github.com/fastapi/fastapi/pull/14747) by [@YuriiMotov](https://github.com/YuriiMotov).
+* ✅ Test order for the submitted byte Files. PR [#14828](https://github.com/fastapi/fastapi/pull/14828) by [@valentinDruzhinin](https://github.com/valentinDruzhinin).
+* 🔧 Configure `test` workflow to run tests with `inline-snapshot=review`. PR [#14876](https://github.com/fastapi/fastapi/pull/14876) by [@YuriiMotov](https://github.com/YuriiMotov).
+
 ## 0.128.6
 
 ### Fixes

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

@@ -15,7 +15,7 @@ This includes, for example:
 
 First, import `BackgroundTasks` and define a parameter in your *path operation function* with a type declaration of `BackgroundTasks`:
 
-{* ../../docs_src/background_tasks/tutorial001_py39.py hl[1,13] *}
+{* ../../docs_src/background_tasks/tutorial001_py310.py hl[1,13] *}
 
 **FastAPI** will create the object of type `BackgroundTasks` for you and pass it as that parameter.
 
@@ -31,13 +31,13 @@ In this case, the task function will write to a file (simulating sending an emai
 
 And as the write operation doesn't use `async` and `await`, we define the function with normal `def`:
 
-{* ../../docs_src/background_tasks/tutorial001_py39.py hl[6:9] *}
+{* ../../docs_src/background_tasks/tutorial001_py310.py hl[6:9] *}
 
 ## Add the background task { #add-the-background-task }
 
 Inside of your *path operation function*, pass your task function to the *background tasks* object with the method `.add_task()`:
 
-{* ../../docs_src/background_tasks/tutorial001_py39.py hl[14] *}
+{* ../../docs_src/background_tasks/tutorial001_py310.py hl[14] *}
 
 `.add_task()` receives as arguments:
 

docs/en/docs/tutorial/bigger-applications.md

@@ -85,7 +85,7 @@ You can create the *path operations* for that module using `APIRouter`.
 
 You import it and create an "instance" the same way you would with the class `FastAPI`:
 
-{* ../../docs_src/bigger_applications/app_an_py39/routers/users.py hl[1,3] title["app/routers/users.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/routers/users.py hl[1,3] title["app/routers/users.py"] *}
 
 ### *Path operations* with `APIRouter` { #path-operations-with-apirouter }
 
@@ -93,7 +93,7 @@ And then you use it to declare your *path operations*.
 
 Use it the same way you would use the `FastAPI` class:
 
-{* ../../docs_src/bigger_applications/app_an_py39/routers/users.py hl[6,11,16] title["app/routers/users.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/routers/users.py hl[6,11,16] title["app/routers/users.py"] *}
 
 You can think of `APIRouter` as a "mini `FastAPI`" class.
 
@@ -117,7 +117,7 @@ So we put them in their own `dependencies` module (`app/dependencies.py`).
 
 We will now use a simple dependency to read a custom `X-Token` header:
 
-{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}
 
 /// tip
 
@@ -149,7 +149,7 @@ We know all the *path operations* in this module have the same:
 
 So, instead of adding all that to each *path operation*, we can add it to the `APIRouter`.
 
-{* ../../docs_src/bigger_applications/app_an_py39/routers/items.py hl[5:10,16,21] title["app/routers/items.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[5:10,16,21] title["app/routers/items.py"] *}
 
 As the path of each *path operation* has to start with `/`, like in:
 
@@ -208,7 +208,7 @@ And we need to get the dependency function from the module `app.dependencies`, t
 
 So we use a relative import with `..` for the dependencies:
 
-{* ../../docs_src/bigger_applications/app_an_py39/routers/items.py hl[3] title["app/routers/items.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}
 
 #### How relative imports work { #how-relative-imports-work }
 
@@ -279,7 +279,7 @@ We are not adding the prefix `/items` nor the `tags=["items"]` to each *path ope
 
 But we can still add _more_ `tags` that will be applied to a specific *path operation*, and also some extra `responses` specific to that *path operation*:
 
-{* ../../docs_src/bigger_applications/app_an_py39/routers/items.py hl[30:31] title["app/routers/items.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[30:31] title["app/routers/items.py"] *}
 
 /// tip
 
@@ -305,13 +305,13 @@ You import and create a `FastAPI` class as normally.
 
 And we can even declare [global dependencies](dependencies/global-dependencies.md){.internal-link target=_blank} that will be combined with the dependencies for each `APIRouter`:
 
-{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[1,3,7] title["app/main.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[1,3,7] title["app/main.py"] *}
 
 ### Import the `APIRouter` { #import-the-apirouter }
 
 Now we import the other submodules that have `APIRouter`s:
 
-{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[4:5] title["app/main.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[4:5] title["app/main.py"] *}
 
 As the files `app/routers/users.py` and `app/routers/items.py` are submodules that are part of the same Python package `app`, we can use a single dot `.` to import them using "relative imports".
 
@@ -374,13 +374,13 @@ the `router` from `users` would overwrite the one from `items` and we wouldn't b
 
 So, to be able to use both of them in the same file, we import the submodules directly:
 
-{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[5] title["app/main.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[5] title["app/main.py"] *}
 
 ### Include the `APIRouter`s for `users` and `items` { #include-the-apirouters-for-users-and-items }
 
 Now, let's include the `router`s from the submodules `users` and `items`:
 
-{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[10:11] title["app/main.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[10:11] title["app/main.py"] *}
 
 /// info
 
@@ -420,13 +420,13 @@ It contains an `APIRouter` with some admin *path operations* that your organizat
 
 For this example it will be super simple. But let's say that because it is shared with other projects in the organization, we cannot modify it and add a `prefix`, `dependencies`, `tags`, etc. directly to the `APIRouter`:
 
-{* ../../docs_src/bigger_applications/app_an_py39/internal/admin.py hl[3] title["app/internal/admin.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/internal/admin.py hl[3] title["app/internal/admin.py"] *}
 
 But we still want to set a custom `prefix` when including the `APIRouter` so that all its *path operations* start with `/admin`, we want to secure it with the `dependencies` we already have for this project, and we want to include `tags` and `responses`.
 
 We can declare all that without having to modify the original `APIRouter` by passing those parameters to `app.include_router()`:
 
-{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[14:17] title["app/main.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[14:17] title["app/main.py"] *}
 
 That way, the original `APIRouter` will stay unmodified, so we can still share that same `app/internal/admin.py` file with other projects in the organization.
 
@@ -447,7 +447,7 @@ We can also add *path operations* directly to the `FastAPI` app.
 
 Here we do it... just to show that we can 🤷:
 
-{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[21:23] title["app/main.py"] *}
+{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[21:23] title["app/main.py"] *}
 
 and it will work correctly, together with all the other *path operations* added with `app.include_router()`.
 

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

@@ -106,13 +106,6 @@ As, by default, singular values are interpreted as query parameters, you don't h
 q: str | None = None
 ```
 
-Or in Python 3.9:
-
-```Python
-q: Union[str, None] = None
-```
-
-
 For example:
 
 {* ../../docs_src/body_multiple_params/tutorial004_an_py310.py hl[28] *}

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

@@ -164,7 +164,7 @@ images: list[Image]
 
 as in:
 
-{* ../../docs_src/body_nested_models/tutorial008_py39.py hl[13] *}
+{* ../../docs_src/body_nested_models/tutorial008_py310.py hl[13] *}
 
 ## Editor support everywhere { #editor-support-everywhere }
 
@@ -194,7 +194,7 @@ 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:
 
-{* ../../docs_src/body_nested_models/tutorial009_py39.py hl[7] *}
+{* ../../docs_src/body_nested_models/tutorial009_py310.py hl[7] *}
 
 /// tip
 

docs/en/docs/tutorial/body.md

@@ -155,7 +155,7 @@ The function parameters will be recognized as follows:
 
 FastAPI will know that the value of `q` is not required because of the default value `= None`.
 
-The `str | None` (Python 3.10+) or `Union` in `Union[str, None]` (Python 3.9+) is not used by FastAPI to determine that the value is not required, it will know it's not required because it has a default value of `= None`.
+The `str | None` is not used by FastAPI to determine that the value is not required, it will know it's not required because it has a default value of `= None`.
 
 But adding the type annotations will allow your editor to give you better support and detect errors.
 

docs/en/docs/tutorial/cookie-param-models.md

@@ -46,7 +46,7 @@ But even if you **fill the data** and click "Execute", because the docs UI works
 
 In some special use cases (probably not very common), you might want to **restrict** the cookies that you want to receive.
 
-Your API now has the power to control its own <abbr title="This is a joke, just in case. It has nothing to do with cookie consents, but it's funny that even the API can now reject the poor cookies. Have a cookie. 🍪">cookie consent</abbr>. 🤪🍪
+Your API now has the power to control its own <dfn title="This is a joke, just in case. It has nothing to do with cookie consents, but it's funny that even the API can now reject the poor cookies. Have a cookie. 🍪">cookie consent</dfn>. 🤪🍪
 
 You can use Pydantic's model configuration to `forbid` any `extra` fields:
 
@@ -54,9 +54,9 @@ You can use Pydantic's model configuration to `forbid` any `extra` fields:
 
 If a client tries to send some **extra cookies**, they will receive an **error** response.
 
-Poor cookie banners with all their effort to get your consent for the <abbr title="This is another joke. Don't pay attention to me. Have some coffee for your cookie. ☕">API to reject it</abbr>. 🍪
+Poor cookie banners with all their effort to get your consent for the <dfn title="This is another joke. Don't pay attention to me. Have some coffee for your cookie. ☕">API to reject it</dfn>. 🍪
 
-For example, if the client tries to send a `santa_tracker` cookie with a value of `good-list-please`, the client will receive an **error** response telling them that the `santa_tracker` <abbr title="Santa disapproves the lack of cookies. 🎅 Okay, no more cookie jokes.">cookie is not allowed</abbr>:
+For example, if the client tries to send a `santa_tracker` cookie with a value of `good-list-please`, the client will receive an **error** response telling them that the `santa_tracker` <dfn title="Santa disapproves the lack of cookies. 🎅 Okay, no more cookie jokes.">cookie is not allowed</dfn>:
 
 ```json
 {
@@ -73,4 +73,4 @@ For example, if the client tries to send a `santa_tracker` cookie with a value o
 
 ## Summary { #summary }
 
-You can use **Pydantic models** to declare <abbr title="Have a last cookie before you go. 🍪">**cookies**</abbr> in **FastAPI**. 😎
+You can use **Pydantic models** to declare <dfn title="Have a last cookie before you go. 🍪">**cookies**</dfn> in **FastAPI**. 😎

docs/en/docs/tutorial/cors.md

@@ -46,7 +46,7 @@ You can also specify whether your backend allows:
 * Specific HTTP methods (`POST`, `PUT`) or all of them with the wildcard `"*"`.
 * Specific HTTP headers or all of them with the wildcard `"*"`.
 
-{* ../../docs_src/cors/tutorial001_py39.py hl[2,6:11,13:19] *}
+{* ../../docs_src/cors/tutorial001_py310.py hl[2,6:11,13:19] *}
 
 
 The default parameters used by the `CORSMiddleware` implementation are restrictive by default, so you'll need to explicitly enable particular origins, methods, or headers, in order for browsers to be permitted to use them in a Cross-Domain context.

docs/en/docs/tutorial/debugging.md

@@ -6,7 +6,7 @@ You can connect the debugger in your editor, for example with Visual Studio Code
 
 In your FastAPI application, import and run `uvicorn` directly:
 
-{* ../../docs_src/debugging/tutorial001_py39.py hl[1,15] *}
+{* ../../docs_src/debugging/tutorial001_py310.py hl[1,15] *}
 
 ### About `__name__ == "__main__"` { #about-name-main }
 

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

@@ -101,7 +101,7 @@ Now you can declare your dependency using this class.
 
 Notice how we write `CommonQueryParams` twice in the above code:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python
 commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
@@ -109,7 +109,7 @@ commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 
@@ -137,7 +137,7 @@ It is from this one that FastAPI will extract the declared parameters and that i
 
 In this case, the first `CommonQueryParams`, in:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python
 commons: Annotated[CommonQueryParams, ...
@@ -145,7 +145,7 @@ commons: Annotated[CommonQueryParams, ...
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 
@@ -163,7 +163,7 @@ commons: CommonQueryParams ...
 
 You could actually write just:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python
 commons: Annotated[Any, Depends(CommonQueryParams)]
@@ -171,7 +171,7 @@ commons: Annotated[Any, Depends(CommonQueryParams)]
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 
@@ -197,7 +197,7 @@ But declaring the type is encouraged as that way your editor will know what will
 
 But you see that we are having some code repetition here, writing `CommonQueryParams` twice:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python
 commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
@@ -205,7 +205,7 @@ commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 
@@ -225,7 +225,7 @@ For those specific cases, you can do the following:
 
 Instead of writing:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python
 commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
@@ -233,7 +233,7 @@ commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 
@@ -249,7 +249,7 @@ commons: CommonQueryParams = Depends(CommonQueryParams)
 
 ...you write:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python
 commons: Annotated[CommonQueryParams, Depends()]
@@ -257,7 +257,7 @@ commons: Annotated[CommonQueryParams, Depends()]
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 

docs/en/docs/tutorial/dependencies/dependencies-in-path-operation-decorators.md

@@ -14,7 +14,7 @@ The *path operation decorator* receives an optional argument `dependencies`.
 
 It should be a `list` of `Depends()`:
 
-{* ../../docs_src/dependencies/tutorial006_an_py39.py hl[19] *}
+{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[19] *}
 
 These dependencies will be executed/solved the same way as normal dependencies. But their value (if they return any) won't be passed to your *path operation function*.
 
@@ -44,13 +44,13 @@ You can use the same dependency *functions* you use normally.
 
 They can declare request requirements (like headers) or other sub-dependencies:
 
-{* ../../docs_src/dependencies/tutorial006_an_py39.py hl[8,13] *}
+{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[8,13] *}
 
 ### Raise exceptions { #raise-exceptions }
 
 These dependencies can `raise` exceptions, the same as normal dependencies:
 
-{* ../../docs_src/dependencies/tutorial006_an_py39.py hl[10,15] *}
+{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[10,15] *}
 
 ### Return values { #return-values }
 
@@ -58,7 +58,7 @@ And they can return values or not, the values won't be used.
 
 So, you can reuse a normal dependency (that returns a value) you already use somewhere else, and even though the value won't be used, the dependency will be executed:
 
-{* ../../docs_src/dependencies/tutorial006_an_py39.py hl[11,16] *}
+{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[11,16] *}
 
 ## Dependencies for a group of *path operations* { #dependencies-for-a-group-of-path-operations }
 

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

@@ -1,6 +1,6 @@
 # Dependencies with yield { #dependencies-with-yield }
 
-FastAPI supports dependencies that do some <abbr title='sometimes also called "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code", etc.'>extra steps after finishing</abbr>.
+FastAPI supports dependencies that do some <dfn title='sometimes also called "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code", etc.'>extra steps after finishing</dfn>.
 
 To do this, use `yield` instead of `return`, and write the extra steps (code) after.
 
@@ -29,15 +29,15 @@ For example, you could use this to create a database session and close it after
 
 Only the code prior to and including the `yield` statement is executed before creating a response:
 
-{* ../../docs_src/dependencies/tutorial007_py39.py hl[2:4] *}
+{* ../../docs_src/dependencies/tutorial007_py310.py hl[2:4] *}
 
 The yielded value is what is injected into *path operations* and other dependencies:
 
-{* ../../docs_src/dependencies/tutorial007_py39.py hl[4] *}
+{* ../../docs_src/dependencies/tutorial007_py310.py hl[4] *}
 
 The code following the `yield` statement is executed after the response:
 
-{* ../../docs_src/dependencies/tutorial007_py39.py hl[5:6] *}
+{* ../../docs_src/dependencies/tutorial007_py310.py hl[5:6] *}
 
 /// tip
 
@@ -57,7 +57,7 @@ So, you can look for that specific exception inside the dependency with `except
 
 In the same way, you can use `finally` to make sure the exit steps are executed, no matter if there was an exception or not.
 
-{* ../../docs_src/dependencies/tutorial007_py39.py hl[3,5] *}
+{* ../../docs_src/dependencies/tutorial007_py310.py hl[3,5] *}
 
 ## Sub-dependencies with `yield` { #sub-dependencies-with-yield }
 
@@ -67,7 +67,7 @@ You can have sub-dependencies and "trees" of sub-dependencies of any size and sh
 
 For example, `dependency_c` can have a dependency on `dependency_b`, and `dependency_b` on `dependency_a`:
 
-{* ../../docs_src/dependencies/tutorial008_an_py39.py hl[6,14,22] *}
+{* ../../docs_src/dependencies/tutorial008_an_py310.py hl[6,14,22] *}
 
 And all of them can use `yield`.
 
@@ -75,7 +75,7 @@ In this case `dependency_c`, to execute its exit code, needs the value from `dep
 
 And, in turn, `dependency_b` needs the value from `dependency_a` (here named `dep_a`) to be available for its exit code.
 
-{* ../../docs_src/dependencies/tutorial008_an_py39.py hl[18:19,26:27] *}
+{* ../../docs_src/dependencies/tutorial008_an_py310.py hl[18:19,26:27] *}
 
 The same way, you could have some dependencies with `yield` and some other dependencies with `return`, and have some of those depend on some of the others.
 
@@ -109,7 +109,7 @@ But it's there for you if you need it. 🤓
 
 ///
 
-{* ../../docs_src/dependencies/tutorial008b_an_py39.py hl[18:22,31] *}
+{* ../../docs_src/dependencies/tutorial008b_an_py310.py hl[18:22,31] *}
 
 If you want to catch exceptions and create a custom response based on that, create a [Custom Exception Handler](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}.
 
@@ -117,7 +117,7 @@ If you want to catch exceptions and create a custom response based on that, crea
 
 If you catch an exception using `except` in a dependency with `yield` and you don't raise it again (or raise a new exception), FastAPI won't be able to notice there was an exception, the same way that would happen with regular Python:
 
-{* ../../docs_src/dependencies/tutorial008c_an_py39.py hl[15:16] *}
+{* ../../docs_src/dependencies/tutorial008c_an_py310.py hl[15:16] *}
 
 In this case, the client will see an *HTTP 500 Internal Server Error* response as it should, given that we are not raising an `HTTPException` or similar, but the server will **not have any logs** or any other indication of what was the error. 😱
 
@@ -127,7 +127,7 @@ If you catch an exception in a dependency with `yield`, unless you are raising a
 
 You can re-raise the same exception using `raise`:
 
-{* ../../docs_src/dependencies/tutorial008d_an_py39.py hl[17] *}
+{* ../../docs_src/dependencies/tutorial008d_an_py310.py hl[17] *}
 
 Now the client will get the same *HTTP 500 Internal Server Error* response, but the server will have our custom `InternalError` in the logs. 😎
 
@@ -190,7 +190,7 @@ Normally the exit code of dependencies with `yield` is executed **after the resp
 
 But if you know that you won't need to use the dependency after returning from the *path operation function*, you can use `Depends(scope="function")` to tell FastAPI that it should close the dependency after the *path operation function* returns, but **before** the **response is sent**.
 
-{* ../../docs_src/dependencies/tutorial008e_an_py39.py hl[12,16] *}
+{* ../../docs_src/dependencies/tutorial008e_an_py310.py hl[12,16] *}
 
 `Depends()` receives a `scope` parameter that can be:
 
@@ -269,7 +269,7 @@ In Python, you can create Context Managers by <a href="https://docs.python.org/3
 You can also use them inside of **FastAPI** dependencies with `yield` by using
 `with` or `async with` statements inside of the dependency function:
 
-{* ../../docs_src/dependencies/tutorial010_py39.py hl[1:9,13] *}
+{* ../../docs_src/dependencies/tutorial010_py310.py hl[1:9,13] *}
 
 /// tip
 

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

@@ -6,7 +6,7 @@ Similar to the way you can [add `dependencies` to the *path operation decorators
 
 In that case, they will be applied to all the *path operations* in the application:
 
-{* ../../docs_src/dependencies/tutorial012_an_py39.py hl[17] *}
+{* ../../docs_src/dependencies/tutorial012_an_py310.py hl[17] *}
 
 
 And all the ideas in the section about [adding `dependencies` to the *path operation decorators*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank} still apply, but in this case, to all of the *path operations* in the app.

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

@@ -1,6 +1,6 @@
 # Dependencies { #dependencies }
 
-**FastAPI** has a very powerful but intuitive **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>** system.
+**FastAPI** has a very powerful but intuitive **<dfn title="also known as components, resources, providers, services, injectables">Dependency Injection</dfn>** system.
 
 It is designed to be very simple to use, and to make it very easy for any developer to integrate other components with **FastAPI**.
 

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

@@ -58,11 +58,11 @@ query_extractor --> query_or_cookie_extractor --> read_query
 
 If one of your dependencies is declared multiple times for the same *path operation*, for example, multiple dependencies have a common sub-dependency, **FastAPI** will know to call that sub-dependency only once per request.
 
-And it will save the returned value in a <abbr title="A utility/system to store computed/generated values, to reuse them instead of computing them again.">"cache"</abbr> and pass it to all the "dependants" that need it in that specific request, instead of calling the dependency multiple times for the same request.
+And it will save the returned value in a <dfn title="A utility/system to store computed/generated values, to reuse them instead of computing them again.">"cache"</dfn> and pass it to all the "dependants" that need it in that specific request, instead of calling the dependency multiple times for the same request.
 
 In an advanced scenario where you know you need the dependency to be called at every step (possibly multiple times) in the same request instead of using the "cached" value, you can set the parameter `use_cache=False` when using `Depends`:
 
-//// tab | Python 3.9+
+//// tab | Python 3.10+
 
 ```Python hl_lines="1"
 async def needy_dependency(fresh_value: Annotated[str, Depends(get_value, use_cache=False)]):
@@ -71,7 +71,7 @@ async def needy_dependency(fresh_value: Annotated[str, Depends(get_value, use_ca
 
 ////
 
-//// tab | Python 3.9+ non-Annotated
+//// tab | Python 3.10+ non-Annotated
 
 /// tip
 

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

@@ -190,9 +190,9 @@ But if we put that in the assignment `response_model=PlaneItem | CarItem` we wou
 
 The same way, you can declare responses of lists of objects.
 
-For that, use the standard Python `typing.List` (or just `list` in Python 3.9 and above):
+For that, use the standard Python `list`:
 
-{* ../../docs_src/extra_models/tutorial004_py39.py hl[18] *}
+{* ../../docs_src/extra_models/tutorial004_py310.py hl[18] *}
 
 ## Response with arbitrary `dict` { #response-with-arbitrary-dict }
 
@@ -200,9 +200,9 @@ 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` (or just `dict` in Python 3.9 and above):
+In this case, you can use `dict`:
 
-{* ../../docs_src/extra_models/tutorial005_py39.py hl[6] *}
+{* ../../docs_src/extra_models/tutorial005_py310.py hl[6] *}
 
 ## Recap { #recap }
 

docs/en/docs/tutorial/first-steps.md

@@ -2,7 +2,7 @@
 
 The simplest FastAPI file could look like this:
 
-{* ../../docs_src/first_steps/tutorial001_py39.py *}
+{* ../../docs_src/first_steps/tutorial001_py310.py *}
 
 Copy that to a file `main.py`.
 
@@ -54,7 +54,7 @@ In the output, there's a line with something like:
 INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
 ```
 
-That line shows the URL where your app is being served, in your local machine.
+That line shows the URL where your app is being served on your local machine.
 
 ### Check it { #check-it }
 
@@ -183,7 +183,7 @@ That's it! Now you can access your app at that URL. ✨
 
 ### Step 1: import `FastAPI` { #step-1-import-fastapi }
 
-{* ../../docs_src/first_steps/tutorial001_py39.py hl[1] *}
+{* ../../docs_src/first_steps/tutorial001_py310.py hl[1] *}
 
 `FastAPI` is a Python class that provides all the functionality for your API.
 
@@ -197,7 +197,7 @@ You can use all the <a href="https://www.starlette.dev/" class="external-link" t
 
 ### Step 2: create a `FastAPI` "instance" { #step-2-create-a-fastapi-instance }
 
-{* ../../docs_src/first_steps/tutorial001_py39.py hl[3] *}
+{* ../../docs_src/first_steps/tutorial001_py310.py hl[3] *}
 
 Here the `app` variable will be an "instance" of the class `FastAPI`.
 
@@ -266,12 +266,12 @@ We are going to call them "**operations**" too.
 
 #### Define a *path operation decorator* { #define-a-path-operation-decorator }
 
-{* ../../docs_src/first_steps/tutorial001_py39.py hl[6] *}
+{* ../../docs_src/first_steps/tutorial001_py310.py hl[6] *}
 
 The `@app.get("/")` tells **FastAPI** that the function right below is in charge of handling requests that go to:
 
 * the path `/`
-* using a <abbr title="an HTTP GET method"><code>get</code> operation</abbr>
+* using a <dfn title="an HTTP GET method"><code>get</code> operation</dfn>
 
 /// info | `@decorator` Info
 
@@ -320,7 +320,7 @@ This is our "**path operation function**":
 * **operation**: is `get`.
 * **function**: is the function below the "decorator" (below `@app.get("/")`).
 
-{* ../../docs_src/first_steps/tutorial001_py39.py hl[7] *}
+{* ../../docs_src/first_steps/tutorial001_py310.py hl[7] *}
 
 This is a Python function.
 
@@ -332,7 +332,7 @@ In this case, it is an `async` function.
 
 You could also define it as a normal function instead of `async def`:
 
-{* ../../docs_src/first_steps/tutorial003_py39.py hl[7] *}
+{* ../../docs_src/first_steps/tutorial003_py310.py hl[7] *}
 
 /// note
 
@@ -342,7 +342,7 @@ If you don't know the difference, check the [Async: *"In a hurry?"*](../async.md
 
 ### Step 5: return the content { #step-5-return-the-content }
 
-{* ../../docs_src/first_steps/tutorial001_py39.py hl[8] *}
+{* ../../docs_src/first_steps/tutorial001_py310.py hl[8] *}
 
 You can return a `dict`, `list`, singular values as `str`, `int`, etc.
 

docs/en/docs/tutorial/handling-errors.md

@@ -25,7 +25,7 @@ To return HTTP responses with errors to the client you use `HTTPException`.
 
 ### Import `HTTPException` { #import-httpexception }
 
-{* ../../docs_src/handling_errors/tutorial001_py39.py hl[1] *}
+{* ../../docs_src/handling_errors/tutorial001_py310.py hl[1] *}
 
 ### Raise an `HTTPException` in your code { #raise-an-httpexception-in-your-code }
 
@@ -39,7 +39,7 @@ The benefit of raising an exception over returning a value will be more evident
 
 In this example, when the client requests an item by an ID that doesn't exist, raise an exception with a status code of `404`:
 
-{* ../../docs_src/handling_errors/tutorial001_py39.py hl[11] *}
+{* ../../docs_src/handling_errors/tutorial001_py310.py hl[11] *}
 
 ### The resulting response { #the-resulting-response }
 
@@ -77,7 +77,7 @@ You probably won't need to use it directly in your code.
 
 But in case you needed it for an advanced scenario, you can add custom headers:
 
-{* ../../docs_src/handling_errors/tutorial002_py39.py hl[14] *}
+{* ../../docs_src/handling_errors/tutorial002_py310.py hl[14] *}
 
 ## Install custom exception handlers { #install-custom-exception-handlers }
 
@@ -89,7 +89,7 @@ And you want to handle this exception globally with FastAPI.
 
 You could add a custom exception handler with `@app.exception_handler()`:
 
-{* ../../docs_src/handling_errors/tutorial003_py39.py hl[5:7,13:18,24] *}
+{* ../../docs_src/handling_errors/tutorial003_py310.py hl[5:7,13:18,24] *}
 
 Here, if you request `/unicorns/yolo`, the *path operation* will `raise` a `UnicornException`.
 
@@ -127,7 +127,7 @@ To override it, import the `RequestValidationError` and use it with `@app.except
 
 The exception handler will receive a `Request` and the exception.
 
-{* ../../docs_src/handling_errors/tutorial004_py39.py hl[2,14:19] *}
+{* ../../docs_src/handling_errors/tutorial004_py310.py hl[2,14:19] *}
 
 Now, if you go to `/items/foo`, instead of getting the default JSON error with:
 
@@ -159,7 +159,7 @@ The same way, you can override the `HTTPException` handler.
 
 For example, you could want to return a plain text response instead of JSON for these errors:
 
-{* ../../docs_src/handling_errors/tutorial004_py39.py hl[3:4,9:11,25] *}
+{* ../../docs_src/handling_errors/tutorial004_py310.py hl[3:4,9:11,25] *}
 
 /// note | Technical Details
 
@@ -183,7 +183,7 @@ The `RequestValidationError` contains the `body` it received with invalid data.
 
 You could use it while developing your app to log the body and debug it, return it to the user, etc.
 
-{* ../../docs_src/handling_errors/tutorial005_py39.py hl[14] *}
+{* ../../docs_src/handling_errors/tutorial005_py310.py hl[14] *}
 
 Now try sending an invalid item like:
 
@@ -239,6 +239,6 @@ from starlette.exceptions import HTTPException as StarletteHTTPException
 
 If you want to use the exception along with the same default exception handlers from  **FastAPI**, you can import and reuse the default exception handlers from `fastapi.exception_handlers`:
 
-{* ../../docs_src/handling_errors/tutorial006_py39.py hl[2:5,15,21] *}
+{* ../../docs_src/handling_errors/tutorial006_py310.py hl[2:5,15,21] *}
 
 In this example you are just printing the error with a very expressive message, but you get the idea. You can use the exception and then just reuse the default exception handlers.

docs/en/docs/tutorial/metadata.md

@@ -18,7 +18,7 @@ You can set the following fields that are used in the OpenAPI specification and
 
 You can set them as follows:
 
-{* ../../docs_src/metadata/tutorial001_py39.py hl[3:16, 19:32] *}
+{* ../../docs_src/metadata/tutorial001_py310.py hl[3:16, 19:32] *}
 
 /// tip
 
@@ -36,7 +36,7 @@ Since OpenAPI 3.1.0 and FastAPI 0.99.0, you can also set the `license_info` with
 
 For example:
 
-{* ../../docs_src/metadata/tutorial001_1_py39.py hl[31] *}
+{* ../../docs_src/metadata/tutorial001_1_py310.py hl[31] *}
 
 ## Metadata for tags { #metadata-for-tags }
 
@@ -58,7 +58,7 @@ Let's try that in an example with tags for `users` and `items`.
 
 Create metadata for your tags and pass it to the `openapi_tags` parameter:
 
-{* ../../docs_src/metadata/tutorial004_py39.py hl[3:16,18] *}
+{* ../../docs_src/metadata/tutorial004_py310.py hl[3:16,18] *}
 
 Notice that you can use Markdown inside of the descriptions, for example "login" will be shown in bold (**login**) and "fancy" will be shown in italics (_fancy_).
 
@@ -72,7 +72,7 @@ You don't have to add metadata for all the tags that you use.
 
 Use the `tags` parameter with your *path operations* (and `APIRouter`s) to assign them to different tags:
 
-{* ../../docs_src/metadata/tutorial004_py39.py hl[21,26] *}
+{* ../../docs_src/metadata/tutorial004_py310.py hl[21,26] *}
 
 /// info
 
@@ -100,7 +100,7 @@ But you can configure it with the parameter `openapi_url`.
 
 For example, to set it to be served at `/api/v1/openapi.json`:
 
-{* ../../docs_src/metadata/tutorial002_py39.py hl[3] *}
+{* ../../docs_src/metadata/tutorial002_py310.py hl[3] *}
 
 If you want to disable the OpenAPI schema completely you can set `openapi_url=None`, that will also disable the documentation user interfaces that use it.
 
@@ -117,4 +117,4 @@ You can configure the two documentation user interfaces included:
 
 For example, to set Swagger UI to be served at `/documentation` and disable ReDoc:
 
-{* ../../docs_src/metadata/tutorial003_py39.py hl[3] *}
+{* ../../docs_src/metadata/tutorial003_py310.py hl[3] *}

docs/en/docs/tutorial/middleware.md

@@ -31,7 +31,7 @@ The middleware function receives:
     * Then it returns the `response` generated by the corresponding *path operation*.
 * You can then further modify the `response` before returning it.
 
-{* ../../docs_src/middleware/tutorial001_py39.py hl[8:9,11,14] *}
+{* ../../docs_src/middleware/tutorial001_py310.py hl[8:9,11,14] *}
 
 /// tip
 
@@ -57,7 +57,7 @@ And also after the `response` is generated, before returning it.
 
 For example, you could add a custom header `X-Process-Time` containing the time in seconds that it took to process the request and generate a response:
 
-{* ../../docs_src/middleware/tutorial001_py39.py hl[10,12:13] *}
+{* ../../docs_src/middleware/tutorial001_py310.py hl[10,12:13] *}
 
 /// tip
 

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

@@ -46,7 +46,7 @@ In these cases, it could make sense to store the tags in an `Enum`.
 
 **FastAPI** supports that the same way as with plain strings:
 
-{* ../../docs_src/path_operation_configuration/tutorial002b_py39.py hl[1,8:10,13,18] *}
+{* ../../docs_src/path_operation_configuration/tutorial002b_py310.py hl[1,8:10,13,18] *}
 
 ## Summary and description { #summary-and-description }
 
@@ -56,7 +56,7 @@ You can add a `summary` and `description`:
 
 ## Description from docstring { #description-from-docstring }
 
-As descriptions tend to be long and cover multiple lines, you can declare the *path operation* description in the function <abbr title="a multi-line string as the first expression inside a function (not assigned to any variable) used for documentation">docstring</abbr> and **FastAPI** will read it from there.
+As descriptions tend to be long and cover multiple lines, you can declare the *path operation* description in the function <dfn title="a multi-line string as the first expression inside a function (not assigned to any variable) used for documentation">docstring</dfn> and **FastAPI** will read it from there.
 
 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).
 
@@ -90,9 +90,9 @@ So, if you don't provide one, **FastAPI** will automatically generate one of "Su
 
 ## Deprecate a *path operation* { #deprecate-a-path-operation }
 
-If you need to mark a *path operation* as <abbr title="obsolete, recommended not to use it">deprecated</abbr>, but without removing it, pass the parameter `deprecated`:
+If you need to mark a *path operation* as <dfn title="obsolete, recommended not to use it">deprecated</dfn>, but without removing it, pass the parameter `deprecated`:
 
-{* ../../docs_src/path_operation_configuration/tutorial006_py39.py hl[16] *}
+{* ../../docs_src/path_operation_configuration/tutorial006_py310.py hl[16] *}
 
 It will be clearly marked as deprecated in the interactive docs:
 

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

@@ -54,11 +54,11 @@ It doesn't matter for **FastAPI**. It will detect the parameters by their names,
 
 So, you can declare your function as:
 
-{* ../../docs_src/path_params_numeric_validations/tutorial002_py39.py hl[7] *}
+{* ../../docs_src/path_params_numeric_validations/tutorial002_py310.py hl[7] *}
 
 But keep in mind that if you use `Annotated`, you won't have this problem, it won't matter as you're not using the function parameter default values for `Query()` or `Path()`.
 
-{* ../../docs_src/path_params_numeric_validations/tutorial002_an_py39.py *}
+{* ../../docs_src/path_params_numeric_validations/tutorial002_an_py310.py *}
 
 ## Order the parameters as you need, tricks { #order-the-parameters-as-you-need-tricks }
 
@@ -83,13 +83,13 @@ Pass `*`, as the first parameter of the function.
 
 Python won't do anything with that `*`, but it will know that all the following parameters should be called as keyword arguments (key-value pairs), also known as <abbr title="From: K-ey W-ord Arg-uments"><code>kwargs</code></abbr>. Even if they don't have a default value.
 
-{* ../../docs_src/path_params_numeric_validations/tutorial003_py39.py hl[7] *}
+{* ../../docs_src/path_params_numeric_validations/tutorial003_py310.py hl[7] *}
 
 ### Better with `Annotated` { #better-with-annotated }
 
 Keep in mind that if you use `Annotated`, as you are not using function parameter default values, you won't have this problem, and you probably won't need to use `*`.
 
-{* ../../docs_src/path_params_numeric_validations/tutorial003_an_py39.py hl[10] *}
+{* ../../docs_src/path_params_numeric_validations/tutorial003_an_py310.py hl[10] *}
 
 ## Number validations: greater than or equal { #number-validations-greater-than-or-equal }
 
@@ -97,7 +97,7 @@ With `Query` and `Path` (and others you'll see later) you can declare number con
 
 Here, with `ge=1`, `item_id` will need to be an integer number "`g`reater than or `e`qual" to `1`.
 
-{* ../../docs_src/path_params_numeric_validations/tutorial004_an_py39.py hl[10] *}
+{* ../../docs_src/path_params_numeric_validations/tutorial004_an_py310.py hl[10] *}
 
 ## Number validations: greater than and less than or equal { #number-validations-greater-than-and-less-than-or-equal }
 
@@ -106,7 +106,7 @@ The same applies for:
 * `gt`: `g`reater `t`han
 * `le`: `l`ess than or `e`qual
 
-{* ../../docs_src/path_params_numeric_validations/tutorial005_an_py39.py hl[10] *}
+{* ../../docs_src/path_params_numeric_validations/tutorial005_an_py310.py hl[10] *}
 
 ## Number validations: floats, greater than and less than { #number-validations-floats-greater-than-and-less-than }
 
@@ -118,7 +118,7 @@ So, `0.5` would be a valid value. But `0.0` or `0` would not.
 
 And the same for <abbr title="less than"><code>lt</code></abbr>.
 
-{* ../../docs_src/path_params_numeric_validations/tutorial006_an_py39.py hl[13] *}
+{* ../../docs_src/path_params_numeric_validations/tutorial006_an_py310.py hl[13] *}
 
 ## Recap { #recap }
 

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

@@ -2,7 +2,7 @@
 
 You can declare path "parameters" or "variables" with the same syntax used by Python format strings:
 
-{* ../../docs_src/path_params/tutorial001_py39.py hl[6:7] *}
+{* ../../docs_src/path_params/tutorial001_py310.py hl[6:7] *}
 
 The value of the path parameter `item_id` will be passed to your function as the argument `item_id`.
 
@@ -16,7 +16,7 @@ So, if you run this example and go to <a href="http://127.0.0.1:8000/items/foo"
 
 You can declare the type of a path parameter in the function, using standard Python type annotations:
 
-{* ../../docs_src/path_params/tutorial002_py39.py hl[7] *}
+{* ../../docs_src/path_params/tutorial002_py310.py hl[7] *}
 
 In this case, `item_id` is declared to be an `int`.
 
@@ -26,7 +26,7 @@ This will give you editor support inside of your function, with error checks, co
 
 ///
 
-## Data <abbr title="also known as: serialization, parsing, marshalling">conversion</abbr> { #data-conversion }
+## Data <dfn title="also known as: serialization, parsing, marshalling">conversion</dfn> { #data-conversion }
 
 If you run this example and open your browser at <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a>, you will see a response of:
 
@@ -38,7 +38,7 @@ If you run this example and open your browser at <a href="http://127.0.0.1:8000/
 
 Notice that the value your function received (and returned) is `3`, as a Python `int`, not a string `"3"`.
 
-So, with that type declaration, **FastAPI** gives you automatic request <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>.
+So, with that type declaration, **FastAPI** gives you automatic request <dfn title="converting the string that comes from an HTTP request into Python data">"parsing"</dfn>.
 
 ///
 
@@ -118,13 +118,13 @@ And then you can also have a path `/users/{user_id}` to get data about a specifi
 
 Because *path operations* are evaluated in order, you need to make sure that the path for `/users/me` is declared before the one for `/users/{user_id}`:
 
-{* ../../docs_src/path_params/tutorial003_py39.py hl[6,11] *}
+{* ../../docs_src/path_params/tutorial003_py310.py hl[6,11] *}
 
 Otherwise, the path for `/users/{user_id}` would match also for `/users/me`, "thinking" that it's receiving a parameter `user_id` with a value of `"me"`.
 
 Similarly, you cannot redefine a path operation:
 
-{* ../../docs_src/path_params/tutorial003b_py39.py hl[6,11] *}
+{* ../../docs_src/path_params/tutorial003b_py310.py hl[6,11] *}
 
 The first one will always be used since the path matches first.
 
@@ -140,11 +140,11 @@ By inheriting from `str` the API docs will be able to know that the values must
 
 Then create class attributes with fixed values, which will be the available valid values:
 
-{* ../../docs_src/path_params/tutorial005_py39.py hl[1,6:9] *}
+{* ../../docs_src/path_params/tutorial005_py310.py hl[1,6:9] *}
 
 /// tip
 
-If you are wondering, "AlexNet", "ResNet", and "LeNet" are just names of Machine Learning <abbr title="Technically, Deep Learning model architectures">models</abbr>.
+If you are wondering, "AlexNet", "ResNet", and "LeNet" are just names of Machine Learning <dfn title="Technically, Deep Learning model architectures">models</dfn>.
 
 ///
 
@@ -152,7 +152,7 @@ If you are wondering, "AlexNet", "ResNet", and "LeNet" are just names of Machine
 
 Then create a *path parameter* with a type annotation using the enum class you created (`ModelName`):
 
-{* ../../docs_src/path_params/tutorial005_py39.py hl[16] *}
+{* ../../docs_src/path_params/tutorial005_py310.py hl[16] *}
 
 ### Check the docs { #check-the-docs }
 
@@ -168,13 +168,13 @@ The value of the *path parameter* will be an *enumeration member*.
 
 You can compare it with the *enumeration member* in your created enum `ModelName`:
 
-{* ../../docs_src/path_params/tutorial005_py39.py hl[17] *}
+{* ../../docs_src/path_params/tutorial005_py310.py hl[17] *}
 
 #### Get the *enumeration value* { #get-the-enumeration-value }
 
 You can get the actual value (a `str` in this case) using `model_name.value`, or in general, `your_enum_member.value`:
 
-{* ../../docs_src/path_params/tutorial005_py39.py hl[20] *}
+{* ../../docs_src/path_params/tutorial005_py310.py hl[20] *}
 
 /// tip
 
@@ -188,7 +188,7 @@ You can return *enum members* from your *path operation*, even nested in a JSON
 
 They will be converted to their corresponding values (strings in this case) before returning them to the client:
 
-{* ../../docs_src/path_params/tutorial005_py39.py hl[18,21,23] *}
+{* ../../docs_src/path_params/tutorial005_py310.py hl[18,21,23] *}
 
 In your client you will get a JSON response like:
 
@@ -227,7 +227,7 @@ In this case, the name of the parameter is `file_path`, and the last part, `:pat
 
 So, you can use it with:
 
-{* ../../docs_src/path_params/tutorial004_py39.py hl[6] *}
+{* ../../docs_src/path_params/tutorial004_py310.py hl[6] *}
 
 /// tip
 
@@ -242,7 +242,7 @@ In that case, the URL would be: `/files//home/johndoe/myfile.txt`, with a double
 With **FastAPI**, by using short, intuitive and standard Python type declarations, you get:
 
 * Editor support: error checks, autocompletion, etc.
-* Data "<abbr title="converting the string that comes from an HTTP request into Python data">parsing</abbr>"
+* Data "<dfn title="converting the string that comes from an HTTP request into Python data">parsing</dfn>"
 * Data validation
 * API annotation and automatic documentation
 

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

@@ -47,40 +47,16 @@ Now it's the time to use it with FastAPI. 🚀
 
 We had this type annotation:
 
-//// tab | Python 3.10+
-
 ```Python
 q: str | None = None
 ```
 
-////
-
-//// tab | Python 3.9+
-
-```Python
-q: Union[str, None] = None
-```
-
-////
-
 What we will do is wrap that with `Annotated`, so it becomes:
 
-//// tab | Python 3.10+
-
 ```Python
 q: Annotated[str | None] = None
 ```
 
-////
-
-//// tab | Python 3.9+
-
-```Python
-q: Annotated[Union[str, None]] = None
-```
-
-////
-
 Both of those versions mean the same thing, `q` is a parameter that can be a `str` or `None`, and by default, it is `None`.
 
 Now let's jump to the fun stuff. 🎉
@@ -109,7 +85,7 @@ FastAPI will now:
 
 ## Alternative (old): `Query` as the default value { #alternative-old-query-as-the-default-value }
 
-Previous versions of FastAPI (before <abbr title="before 2023-03">0.95.0</abbr>) required you to use `Query` as the default value of your parameter, instead of putting it in `Annotated`, there's a high chance that you will see code using it around, so I'll explain it to you.
+Previous versions of FastAPI (before <dfn title="before 2023-03">0.95.0</dfn>) required you to use `Query` as the default value of your parameter, instead of putting it in `Annotated`, there's a high chance that you will see code using it around, so I'll explain it to you.
 
 /// tip
 
@@ -192,7 +168,7 @@ You can also add a parameter `min_length`:
 
 ## Add regular expressions { #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> `pattern` that the parameter should match:
+You can define a <dfn title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">regular expression</dfn> `pattern` that the parameter should match:
 
 {* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}
 
@@ -212,7 +188,7 @@ You can, of course, use default values other than `None`.
 
 Let's say that you want to declare the `q` query parameter to have a `min_length` of `3`, and to have a default value of `"fixedquery"`:
 
-{* ../../docs_src/query_params_str_validations/tutorial005_an_py39.py hl[9] *}
+{* ../../docs_src/query_params_str_validations/tutorial005_an_py310.py hl[9] *}
 
 /// note
 
@@ -242,7 +218,7 @@ q: Annotated[str | None, Query(min_length=3)] = None
 
 So, when you need to declare a value as required while using `Query`, you can simply not declare a default value:
 
-{* ../../docs_src/query_params_str_validations/tutorial006_an_py39.py hl[9] *}
+{* ../../docs_src/query_params_str_validations/tutorial006_an_py310.py hl[9] *}
 
 ### Required, can be `None` { #required-can-be-none }
 
@@ -293,7 +269,7 @@ The interactive API docs will update accordingly, to allow multiple values:
 
 You can also define a default `list` of values if none are provided:
 
-{* ../../docs_src/query_params_str_validations/tutorial012_an_py39.py hl[9] *}
+{* ../../docs_src/query_params_str_validations/tutorial012_an_py310.py hl[9] *}
 
 If you go to:
 
@@ -316,7 +292,7 @@ the default of `q` will be: `["foo", "bar"]` and your response will be:
 
 You can also use `list` directly instead of `list[str]`:
 
-{* ../../docs_src/query_params_str_validations/tutorial013_an_py39.py hl[9] *}
+{* ../../docs_src/query_params_str_validations/tutorial013_an_py310.py hl[9] *}
 
 /// note
 
@@ -372,7 +348,7 @@ Then you can declare an `alias`, and that alias is what will be used to find the
 
 Now let's say you don't like this parameter anymore.
 
-You have to leave it there a while because there are clients using it, but you want the docs to clearly show it as <abbr title="obsolete, recommended not to use it">deprecated</abbr>.
+You have to leave it there a while because there are clients using it, but you want the docs to clearly show it as <dfn title="obsolete, recommended not to use it">deprecated</dfn>.
 
 Then pass the parameter `deprecated=True` to `Query`:
 
@@ -402,7 +378,7 @@ Pydantic also has <a href="https://docs.pydantic.dev/latest/concepts/validators/
 
 ///
 
-For example, this custom validator checks that the item ID starts with `isbn-` for an <abbr title="ISBN means International Standard Book Number">ISBN</abbr> book number or with `imdb-` for an <abbr title="IMDB (Internet Movie Database) is a website with information about movies">IMDB</abbr> movie URL ID:
+For example, this custom validator checks that the item ID starts with `isbn-` for an <abbr title="International Standard Book Number">ISBN</abbr> book number or with `imdb-` for an <abbr title="Internet Movie Database: a website with information about movies">IMDB</abbr> movie URL ID:
 
 {* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}
 
@@ -436,7 +412,7 @@ Did you notice? a string using `value.startswith()` can take a tuple, and it wil
 
 #### A Random Item { #a-random-item }
 
-With `data.items()` we get an <abbr title="Something we can iterate on with a for loop, like a list, set, etc.">iterable object</abbr> with tuples containing the key and value for each dictionary item.
+With `data.items()` we get an <dfn title="Something we can iterate on with a for loop, like a list, set, etc.">iterable object</dfn> with tuples containing the key and value for each dictionary item.
 
 We convert this iterable object into a proper `list` with `list(data.items())`.
 

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

@@ -2,7 +2,7 @@
 
 When you declare other function parameters that are not part of the path parameters, they are automatically interpreted as "query" parameters.
 
-{* ../../docs_src/query_params/tutorial001_py39.py hl[9] *}
+{* ../../docs_src/query_params/tutorial001_py310.py hl[9] *}
 
 The query is the set of key-value pairs that go after the `?` in a URL, separated by `&` characters.
 
@@ -24,7 +24,7 @@ But when you declare them with Python types (in the example above, as `int`), th
 All the same process that applied for path parameters also applies for query parameters:
 
 * Editor support (obviously)
-* Data <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>
+* Data <dfn title="converting the string that comes from an HTTP request into Python data">"parsing"</dfn>
 * Data validation
 * Automatic documentation
 
@@ -128,7 +128,7 @@ If you don't want to add a specific value but just make it optional, set the def
 
 But when you want to make a query parameter required, you can just not declare any default value:
 
-{* ../../docs_src/query_params/tutorial005_py39.py hl[6:7] *}
+{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}
 
 Here the query parameter `needy` is a required query parameter of type `str`.
 

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

@@ -20,13 +20,13 @@ This is because uploaded files are sent as "form data".
 
 Import `File` and `UploadFile` from `fastapi`:
 
-{* ../../docs_src/request_files/tutorial001_an_py39.py hl[3] *}
+{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}
 
 ## Define `File` Parameters { #define-file-parameters }
 
 Create file parameters the same way you would for `Body` or `Form`:
 
-{* ../../docs_src/request_files/tutorial001_an_py39.py hl[9] *}
+{* ../../docs_src/request_files/tutorial001_an_py310.py hl[9] *}
 
 /// info
 
@@ -54,7 +54,7 @@ But there are several cases in which you might benefit from using `UploadFile`.
 
 Define a file parameter with a type of `UploadFile`:
 
-{* ../../docs_src/request_files/tutorial001_an_py39.py hl[14] *}
+{* ../../docs_src/request_files/tutorial001_an_py310.py hl[14] *}
 
 Using `UploadFile` has several advantages over `bytes`:
 
@@ -143,7 +143,7 @@ You can make a file optional by using standard type annotations and setting a de
 
 You can also use `File()` with `UploadFile`, for example, to set additional metadata:
 
-{* ../../docs_src/request_files/tutorial001_03_an_py39.py hl[9,15] *}
+{* ../../docs_src/request_files/tutorial001_03_an_py310.py hl[9,15] *}
 
 ## Multiple File Uploads { #multiple-file-uploads }
 
@@ -153,7 +153,7 @@ They would be associated to the same "form field" sent using "form data".
 
 To use that, declare a list of `bytes` or `UploadFile`:
 
-{* ../../docs_src/request_files/tutorial002_an_py39.py hl[10,15] *}
+{* ../../docs_src/request_files/tutorial002_an_py310.py hl[10,15] *}
 
 You will receive, as declared, a `list` of `bytes` or `UploadFile`s.
 
@@ -169,7 +169,7 @@ You could also use `from starlette.responses import HTMLResponse`.
 
 And the same way as before, you can use `File()` to set additional parameters, even for `UploadFile`:
 
-{* ../../docs_src/request_files/tutorial003_an_py39.py hl[11,18:20] *}
+{* ../../docs_src/request_files/tutorial003_an_py310.py hl[11,18:20] *}
 
 ## Recap { #recap }
 

docs/en/docs/tutorial/request-form-models.md

@@ -24,7 +24,7 @@ This is supported since FastAPI version `0.113.0`. 🤓
 
 You just need to declare a **Pydantic model** with the fields you want to receive as **form fields**, and then declare the parameter as `Form`:
 
-{* ../../docs_src/request_form_models/tutorial001_an_py39.py hl[9:11,15] *}
+{* ../../docs_src/request_form_models/tutorial001_an_py310.py hl[9:11,15] *}
 
 **FastAPI** will **extract** the data for **each field** from the **form data** in the request and give you the Pydantic model you defined.
 
@@ -48,7 +48,7 @@ This is supported since FastAPI version `0.114.0`. 🤓
 
 You can use Pydantic's model configuration to `forbid` any `extra` fields:
 
-{* ../../docs_src/request_form_models/tutorial002_an_py39.py hl[12] *}
+{* ../../docs_src/request_form_models/tutorial002_an_py310.py hl[12] *}
 
 If a client tries to send some extra data, they will receive an **error** response.
 

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

@@ -16,13 +16,13 @@ $ pip install python-multipart
 
 ## Import `File` and `Form` { #import-file-and-form }
 
-{* ../../docs_src/request_forms_and_files/tutorial001_an_py39.py hl[3] *}
+{* ../../docs_src/request_forms_and_files/tutorial001_an_py310.py hl[3] *}
 
 ## Define `File` and `Form` parameters { #define-file-and-form-parameters }
 
 Create file and form parameters the same way you would for `Body` or `Query`:
 
-{* ../../docs_src/request_forms_and_files/tutorial001_an_py39.py hl[10:12] *}
+{* ../../docs_src/request_forms_and_files/tutorial001_an_py310.py hl[10:12] *}
 
 The files and form fields will be uploaded as form data and you will receive the files and form fields.
 

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

@@ -18,17 +18,17 @@ $ pip install python-multipart
 
 Import `Form` from `fastapi`:
 
-{* ../../docs_src/request_forms/tutorial001_an_py39.py hl[3] *}
+{* ../../docs_src/request_forms/tutorial001_an_py310.py hl[3] *}
 
 ## Define `Form` parameters { #define-form-parameters }
 
 Create form parameters the same way you would for `Body` or `Query`:
 
-{* ../../docs_src/request_forms/tutorial001_an_py39.py hl[9] *}
+{* ../../docs_src/request_forms/tutorial001_an_py310.py hl[9] *}
 
 For example, in one of the ways the OAuth2 specification can be used (called "password flow") it is required to send a `username` and `password` as form fields.
 
-The <abbr title="specification">spec</abbr> requires the fields to be exactly named `username` and `password`, and to be sent as form fields, not JSON.
+The <dfn title="specification">spec</dfn> requires the fields to be exactly named `username` and `password`, and to be sent as form fields, not JSON.
 
 With `Form` you can declare the same configurations as with `Body` (and `Query`, `Path`, `Cookie`), including validation, examples, an alias (e.g. `user-name` instead of `username`), etc.
 

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

@@ -183,7 +183,7 @@ There might be cases where you return something that is not a valid Pydantic fie
 
 The most common case would be [returning a Response directly as explained later in the advanced docs](../advanced/response-directly.md){.internal-link target=_blank}.
 
-{* ../../docs_src/response_model/tutorial003_02_py39.py hl[8,10:11] *}
+{* ../../docs_src/response_model/tutorial003_02_py310.py hl[8,10:11] *}
 
 This simple case is handled automatically by FastAPI because the return type annotation is the class (or a subclass of) `Response`.
 
@@ -193,7 +193,7 @@ And tools will also be happy because both `RedirectResponse` and `JSONResponse`
 
 You can also use a subclass of `Response` in the type annotation:
 
-{* ../../docs_src/response_model/tutorial003_03_py39.py hl[8:9] *}
+{* ../../docs_src/response_model/tutorial003_03_py310.py hl[8:9] *}
 
 This will also work because `RedirectResponse` is a subclass of `Response`, and FastAPI will automatically handle this simple case.
 
@@ -201,7 +201,7 @@ This will also work because `RedirectResponse` is a subclass of `Response`, and
 
 But when you return some other arbitrary object that is not a valid Pydantic type (e.g. a database object) and you annotate it like that in the function, FastAPI will try to create a Pydantic response model from that type annotation, and will fail.
 
-The same would happen if you had something like a <abbr title='A union between multiple types means "any of these types".'>union</abbr> between different types where one or more of them are not valid Pydantic types, for example this would fail 💥:
+The same would happen if you had something like a <dfn title='A union between multiple types means "any of these types".'>union</dfn> between different types where one or more of them are not valid Pydantic types, for example this would fail 💥:
 
 {* ../../docs_src/response_model/tutorial003_04_py310.py hl[8] *}
 

docs/en/docs/tutorial/response-status-code.md

@@ -8,7 +8,7 @@ The same way you can specify a response model, you can also declare the HTTP sta
 * `@app.delete()`
 * etc.
 
-{* ../../docs_src/response_status_code/tutorial001_py39.py hl[6] *}
+{* ../../docs_src/response_status_code/tutorial001_py310.py hl[6] *}
 
 /// note
 
@@ -74,7 +74,7 @@ To know more about each status code and which code is for what, check the <a hre
 
 Let's see the previous example again:
 
-{* ../../docs_src/response_status_code/tutorial001_py39.py hl[6] *}
+{* ../../docs_src/response_status_code/tutorial001_py310.py hl[6] *}
 
 `201` is the status code for "Created".
 
@@ -82,7 +82,7 @@ But you don't have to memorize what each of these codes mean.
 
 You can use the convenience variables from `fastapi.status`.
 
-{* ../../docs_src/response_status_code/tutorial002_py39.py hl[1,6] *}
+{* ../../docs_src/response_status_code/tutorial002_py310.py hl[1,6] *}
 
 They are just a convenience, they hold the same number, but that way you can use the editor's autocomplete to find them:
 

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

@@ -74,7 +74,7 @@ You can of course also pass multiple `examples`:
 
 When you do this, the examples will be part of the internal **JSON Schema** for that body data.
 
-Nevertheless, at the <abbr title="2023-08-26">time of writing this</abbr>, Swagger UI, the tool in charge of showing the docs UI, doesn't support showing multiple examples for the data in **JSON Schema**. But read below for a workaround.
+Nevertheless, at the <dfn title="2023-08-26">time of writing this</dfn>, Swagger UI, the tool in charge of showing the docs UI, doesn't support showing multiple examples for the data in **JSON Schema**. But read below for a workaround.
 
 ### OpenAPI-specific `examples` { #openapi-specific-examples }
 

docs/en/docs/tutorial/security/first-steps.md

@@ -20,7 +20,7 @@ Let's first just use the code and see how it works, and then we'll come back to
 
 Copy the example in a file `main.py`:
 
-{* ../../docs_src/security/tutorial001_an_py39.py *}
+{* ../../docs_src/security/tutorial001_an_py310.py *}
 
 ## Run it { #run-it }
 
@@ -132,7 +132,7 @@ In that case, **FastAPI** also provides you with the tools to build it.
 
 When we create an instance of the `OAuth2PasswordBearer` class we pass in the `tokenUrl` parameter. This parameter contains the URL that the client (the frontend running in the user's browser) will use to send the `username` and `password` in order to get a token.
 
-{* ../../docs_src/security/tutorial001_an_py39.py hl[8] *}
+{* ../../docs_src/security/tutorial001_an_py310.py hl[8] *}
 
 /// tip
 
@@ -170,7 +170,7 @@ So, it can be used with `Depends`.
 
 Now you can pass that `oauth2_scheme` in a dependency with `Depends`.
 
-{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}
+{* ../../docs_src/security/tutorial001_an_py310.py hl[12] *}
 
 This dependency will provide a `str` that is assigned to the parameter `token` of the *path operation function*.
 

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

@@ -2,7 +2,7 @@
 
 In the previous chapter the security system (which is based on the dependency injection system) was giving the *path operation function* a `token` as a `str`:
 
-{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}
+{* ../../docs_src/security/tutorial001_an_py310.py hl[12] *}
 
 But that is still not that useful.
 

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

@@ -7,7 +7,7 @@ You can serve static files automatically from a directory using `StaticFiles`.
 * Import `StaticFiles`.
 * "Mount" a `StaticFiles()` instance in a specific path.
 
-{* ../../docs_src/static_files/tutorial001_py39.py hl[2,6] *}
+{* ../../docs_src/static_files/tutorial001_py310.py hl[2,6] *}
 
 /// note | Technical Details
 

docs/en/docs/tutorial/testing.md

@@ -30,7 +30,7 @@ Use the `TestClient` object the same way as you do with `httpx`.
 
 Write simple `assert` statements with the standard Python expressions that you need to check (again, standard `pytest`).
 
-{* ../../docs_src/app_testing/tutorial001_py39.py hl[2,12,15:18] *}
+{* ../../docs_src/app_testing/tutorial001_py310.py hl[2,12,15:18] *}
 
 /// tip
 
@@ -76,7 +76,7 @@ Let's say you have a file structure as described in [Bigger Applications](bigger
 In the file `main.py` you have your **FastAPI** app:
 
 
-{* ../../docs_src/app_testing/app_a_py39/main.py *}
+{* ../../docs_src/app_testing/app_a_py310/main.py *}
 
 ### Testing file { #testing-file }
 
@@ -92,7 +92,7 @@ Then you could have a file `test_main.py` with your tests. It could live on the
 
 Because this file is in the same package, you can use relative imports to import the object `app` from the `main` module (`main.py`):
 
-{* ../../docs_src/app_testing/app_a_py39/test_main.py hl[3] *}
+{* ../../docs_src/app_testing/app_a_py310/test_main.py hl[3] *}
 
 
 ...and have the code for the tests just like before.

docs/en/docs/virtual-environments.md

@@ -53,7 +53,7 @@ $ cd awesome-project
 
 ## Create a Virtual Environment { #create-a-virtual-environment }
 
-When you start working on a Python project **for the first time**, create a virtual environment **<abbr title="there are other options, this is a simple guideline">inside your project</abbr>**.
+When you start working on a Python project **for the first time**, create a virtual environment **<dfn title="there are other options, this is a simple guideline">inside your project</dfn>**.
 
 /// tip
 

docs/en/mkdocs.yml

@@ -191,6 +191,7 @@ nav:
     - advanced/openapi-webhooks.md
     - advanced/wsgi.md
     - advanced/generate-clients.md
+    - advanced/advanced-python-types.md
   - fastapi-cli.md
   - Deployment:
     - deployment/index.md

docs/es/docs/_llm-test.md

@@ -202,15 +202,10 @@ Aquí algunas cosas envueltas en elementos HTML "abbr" (algunas son inventadas):
 * <abbr title="XML Web Token - Token web XML">XWT</abbr>
 * <abbr title="Parallel Server Gateway Interface - Interfaz de pasarela de servidor paralela">PSGI</abbr>
 
-### El abbr da una explicación { #the-abbr-gives-an-explanation }
-
-* <abbr title="Un grupo de máquinas configuradas para estar conectadas y trabajar juntas de alguna manera.">clúster</abbr>
-* <abbr title="Un método de machine learning que usa redes neuronales artificiales con numerosas capas ocultas entre las capas de entrada y salida, desarrollando así una estructura interna completa">Deep Learning</abbr>
-
 ### El abbr da una frase completa y una explicación { #the-abbr-gives-a-full-phrase-and-an-explanation }
 
 * <abbr title="Mozilla Developer Network - Red de Desarrolladores de Mozilla: documentación para desarrolladores, escrita por la gente de Firefox">MDN</abbr>
-* <abbr title="Input/Output: lectura o escritura de disco, comunicaciones de red.">I/O</abbr>.
+* <abbr title="Input/Output - Entrada/Salida: lectura o escritura de disco, comunicaciones de red.">I/O</abbr>.
 
 ////
 
@@ -224,6 +219,11 @@ Consulta la sección `### HTML abbr elements` en el prompt general en `scripts/t
 
 ////
 
+## Elementos HTML "dfn" { #html-dfn-elements }
+
+* <dfn title="Un grupo de máquinas configuradas para estar conectadas y trabajar juntas de alguna manera.">clúster</dfn>
+* <dfn title="Un método de Machine Learning que usa redes neuronales artificiales con numerosas capas ocultas entre las capas de entrada y salida, desarrollando así una estructura interna completa">Deep Learning</dfn>
+
 ## Encabezados { #headings }
 
 //// tab | Prueba
@@ -433,7 +433,7 @@ Para instrucciones específicas del idioma, mira p. ej. la sección `### Heading
 * el motor de plantillas
 
 * la anotación de tipos
-* las anotaciones de tipos
+* la anotación de tipos
 
 * el worker del servidor
 * el worker de Uvicorn

docs/ko/docs/_llm-test.md

@@ -132,7 +132,7 @@ works(foo="bar")  # 이건 동작합니다 🎉
 일부 텍스트
 ///
 
-/// note Technical details | 기술 세부사항
+/// note | 기술 세부사항
 일부 텍스트
 ///
 
@@ -202,11 +202,6 @@ works(foo="bar")  # 이건 동작합니다 🎉
 * <abbr title="XML Web Token - XML 웹 토큰">XWT</abbr>
 * <abbr title="Parallel Server Gateway Interface - 병렬 서버 게이트웨이 인터페이스">PSGI</abbr>
 
-### abbr가 설명을 제공 { #the-abbr-gives-an-explanation }
-
-* <abbr title="어떤 방식으로든 서로 연결되고 함께 작동하도록 구성된 머신들의 집합입니다.">cluster</abbr>
-* <abbr title="입력과 출력 계층 사이에 수많은 은닉 계층을 둔 인공 신경망을 사용하는 머신 러닝 방법으로, 이를 통해 포괄적인 내부 구조를 형성합니다">Deep Learning</abbr>
-
 ### abbr가 전체 문구와 설명을 제공 { #the-abbr-gives-a-full-phrase-and-an-explanation }
 
 * <abbr title="Mozilla Developer Network - 모질라 개발자 네트워크: Firefox를 만드는 사람들이 작성한 개발자용 문서">MDN</abbr>
@@ -224,6 +219,11 @@ works(foo="bar")  # 이건 동작합니다 🎉
 
 ////
 
+## HTML "dfn" 요소 { #html-dfn-elements }
+
+* <dfn title="어떤 방식으로든 서로 연결되고 함께 작동하도록 구성된 머신들의 집합입니다.">클러스터</dfn>
+* <dfn title="입력과 출력 계층 사이에 수많은 은닉 계층을 둔 인공 신경망을 사용하는 머신 러닝 방법으로, 이를 통해 포괄적인 내부 구조를 형성합니다">딥 러닝</dfn>
+
 ## 제목 { #headings }
 
 //// tab | 테스트

docs/pt/docs/_llm-test.md

@@ -197,15 +197,10 @@ Aqui estão algumas coisas envolvidas em elementos HTML "abbr" (algumas são inv
 
 ### O abbr fornece uma frase completa { #the-abbr-gives-a-full-phrase }
 
-* <abbr title="Getting Things Done">GTD</abbr>
-* <abbr title="less than - menos que"><code>lt</code></abbr>
-* <abbr title="XML Web Token">XWT</abbr>
-* <abbr title="Parallel Server Gateway Interface - Interface de Gateway de Servidor Paralelo">PSGI</abbr>
-
-### O abbr fornece uma explicação { #the-abbr-gives-an-explanation }
-
-* <abbr title="Um grupo de máquinas configuradas para estarem conectadas e trabalharem juntas de alguma forma.">cluster</abbr>
-* <abbr title="Um método de aprendizado de máquina que usa redes neurais artificiais com numerosas camadas ocultas entre as camadas de entrada e saída, desenvolvendo assim uma estrutura interna abrangente">Deep Learning</abbr>
+* <abbr title="Getting Things Done – Fazer as Coisas">GTD</abbr>
+* <abbr title="less than – menos que"><code>lt</code></abbr>
+* <abbr title="XML Web Token – Token Web XML">XWT</abbr>
+* <abbr title="Parallel Server Gateway Interface – Interface de Gateway de Servidor Paralelo">PSGI</abbr>
 
 ### O abbr fornece uma frase completa e uma explicação { #the-abbr-gives-a-full-phrase-and-an-explanation }
 
@@ -224,6 +219,11 @@ Veja a seção `### HTML abbr elements` no prompt geral em `scripts/translate.py
 
 ////
 
+## Elementos HTML "dfn" { #html-dfn-elements }
+
+* <dfn title="Um grupo de máquinas configuradas para estarem conectadas e trabalharem juntas de alguma forma.">cluster</dfn>
+* <dfn title="Um método de aprendizado de máquina que usa redes neurais artificiais com numerosas camadas ocultas entre as camadas de entrada e saída, desenvolvendo assim uma estrutura interna abrangente">Deep Learning</dfn>
+
 ## Títulos { #headings }
 
 //// tab | Teste

docs/ru/docs/_llm-test.md

@@ -202,11 +202,6 @@ works(foo="bar")  # Это работает 🎉
 * <abbr title="XML Web Token - XML веб‑токен">XWT</abbr>
 * <abbr title="Parallel Server Gateway Interface - Параллельный серверный интерфейс шлюза">PSGI</abbr>
 
-### abbr даёт объяснение { #the-abbr-gives-an-explanation }
-
-* <abbr title="Группа машин, которые настроены на соединение и совместную работу определённым образом.">кластер</abbr>
-* <abbr title="Метод машинного обучения, который использует искусственные нейронные сети с многочисленными скрытыми слоями между входным и выходным слоями, тем самым формируя сложную внутреннюю структуру">Глубокое обучение</abbr>
-
 ### abbr даёт полную расшифровку и объяснение { #the-abbr-gives-a-full-phrase-and-an-explanation }
 
 * <abbr title="Mozilla Developer Network - Сеть разработчиков Mozilla: документация для разработчиков, созданная командой Firefox">MDN</abbr>
@@ -224,6 +219,11 @@ works(foo="bar")  # Это работает 🎉
 
 ////
 
+## HTML-элементы "dfn" { #html-dfn-elements }
+
+* <dfn title="Группа машин, которые настроены на соединение и совместную работу определённым образом.">кластер</dfn>
+* <dfn title="Метод машинного обучения, который использует искусственные нейронные сети с многочисленными скрытыми слоями между входным и выходным слоями, тем самым формируя сложную внутреннюю структуру">Глубокое обучение</dfn>
+
 ## Заголовки { #headings }
 
 //// tab | Тест

docs_src/additional_responses/tutorial001_py310.py

@@ -0,0 +1,22 @@
+from fastapi import FastAPI
+from fastapi.responses import JSONResponse
+from pydantic import BaseModel
+
+
+class Item(BaseModel):
+    id: str
+    value: str
+
+
+class Message(BaseModel):
+    message: str
+
+
+app = FastAPI()
+
+
+@app.get("/items/{item_id}", response_model=Item, responses={404: {"model": Message}})
+async def read_item(item_id: str):
+    if item_id == "foo":
+        return {"id": "foo", "value": "there goes my hero"}
+    return JSONResponse(status_code=404, content={"message": "Item not found"})

docs_src/additional_responses/tutorial002_py39.py

@@ -1,30 +0,0 @@
-from typing import Union
-
-from fastapi import FastAPI
-from fastapi.responses import FileResponse
-from pydantic import BaseModel
-
-
-class Item(BaseModel):
-    id: str
-    value: str
-
-
-app = FastAPI()
-
-
-@app.get(
-    "/items/{item_id}",
-    response_model=Item,
-    responses={
-        200: {
-            "content": {"image/png": {}},
-            "description": "Return the JSON item or an image.",
-        }
-    },
-)
-async def read_item(item_id: str, img: Union[bool, None] = None):
-    if img:
-        return FileResponse("image.png", media_type="image/png")
-    else:
-        return {"id": "foo", "value": "there goes my hero"}

docs_src/additional_responses/tutorial003_py310.py

@@ -0,0 +1,37 @@
+from fastapi import FastAPI
+from fastapi.responses import JSONResponse
+from pydantic import BaseModel
+
+
+class Item(BaseModel):
+    id: str
+    value: str
+
+
+class Message(BaseModel):
+    message: str
+
+
+app = FastAPI()
+
+
+@app.get(
+    "/items/{item_id}",
+    response_model=Item,
+    responses={
+        404: {"model": Message, "description": "The item was not found"},
+        200: {
+            "description": "Item requested by ID",
+            "content": {
+                "application/json": {
+                    "example": {"id": "bar", "value": "The bar tenders"}
+                }
+            },
+        },
+    },
+)
+async def read_item(item_id: str):
+    if item_id == "foo":
+        return {"id": "foo", "value": "there goes my hero"}
+    else:
+        return JSONResponse(status_code=404, content={"message": "Item not found"})

docs_src/additional_responses/tutorial004_py39.py

@@ -1,32 +0,0 @@
-from typing import Union
-
-from fastapi import FastAPI
-from fastapi.responses import FileResponse
-from pydantic import BaseModel
-
-
-class Item(BaseModel):
-    id: str
-    value: str
-
-
-responses = {
-    404: {"description": "Item not found"},
-    302: {"description": "The item was moved"},
-    403: {"description": "Not enough privileges"},
-}
-
-
-app = FastAPI()
-
-
-@app.get(
-    "/items/{item_id}",
-    response_model=Item,
-    responses={**responses, 200: {"content": {"image/png": {}}}},
-)
-async def read_item(item_id: str, img: Union[bool, None] = None):
-    if img:
-        return FileResponse("image.png", media_type="image/png")
-    else:
-        return {"id": "foo", "value": "there goes my hero"}

docs_src/additional_status_codes/tutorial001_an_py39.py

@@ -1,25 +0,0 @@
-from typing import Annotated, Union
-
-from fastapi import Body, FastAPI, status
-from fastapi.responses import JSONResponse
-
-app = FastAPI()
-
-items = {"foo": {"name": "Fighters", "size": 6}, "bar": {"name": "Tenders", "size": 3}}
-
-
-@app.put("/items/{item_id}")
-async def upsert_item(
-    item_id: str,
-    name: Annotated[Union[str, None], Body()] = None,
-    size: Annotated[Union[int, None], Body()] = None,
-):
-    if item_id in items:
-        item = items[item_id]
-        item["name"] = name
-        item["size"] = size
-        return item
-    else:
-        item = {"name": name, "size": size}
-        items[item_id] = item
-        return JSONResponse(status_code=status.HTTP_201_CREATED, content=item)

docs_src/additional_status_codes/tutorial001_py39.py

@@ -1,25 +0,0 @@
-from typing import Union
-
-from fastapi import Body, FastAPI, status
-from fastapi.responses import JSONResponse
-
-app = FastAPI()
-
-items = {"foo": {"name": "Fighters", "size": 6}, "bar": {"name": "Tenders", "size": 3}}
-
-
-@app.put("/items/{item_id}")
-async def upsert_item(
-    item_id: str,
-    name: Union[str, None] = Body(default=None),
-    size: Union[int, None] = Body(default=None),
-):
-    if item_id in items:
-        item = items[item_id]
-        item["name"] = name
-        item["size"] = size
-        return item
-    else:
-        item = {"name": name, "size": size}
-        items[item_id] = item
-        return JSONResponse(status_code=status.HTTP_201_CREATED, content=item)

docs_src/advanced_middleware/tutorial001_py310.py

@@ -0,0 +1,11 @@
+from fastapi import FastAPI
+from fastapi.middleware.httpsredirect import HTTPSRedirectMiddleware
+
+app = FastAPI()
+
+app.add_middleware(HTTPSRedirectMiddleware)
+
+
+@app.get("/")
+async def main():
+    return {"message": "Hello World"}

docs_src/advanced_middleware/tutorial002_py310.py

@@ -0,0 +1,13 @@
+from fastapi import FastAPI
+from fastapi.middleware.trustedhost import TrustedHostMiddleware
+
+app = FastAPI()
+
+app.add_middleware(
+    TrustedHostMiddleware, allowed_hosts=["example.com", "*.example.com"]
+)
+
+
+@app.get("/")
+async def main():
+    return {"message": "Hello World"}

docs_src/advanced_middleware/tutorial003_py310.py

@@ -0,0 +1,11 @@
+from fastapi import FastAPI
+from fastapi.middleware.gzip import GZipMiddleware
+
+app = FastAPI()
+
+app.add_middleware(GZipMiddleware, minimum_size=1000, compresslevel=5)
+
+
+@app.get("/")
+async def main():
+    return "somebigcontent"

docs_src/app_testing/app_a_py310/main.py

@@ -0,0 +1,8 @@
+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/")
+async def read_main():
+    return {"msg": "Hello World"}

docs_src/app_testing/app_a_py310/test_main.py

@@ -0,0 +1,11 @@
+from fastapi.testclient import TestClient
+
+from .main import app
+
+client = TestClient(app)
+
+
+def test_read_main():
+    response = client.get("/")
+    assert response.status_code == 200
+    assert response.json() == {"msg": "Hello World"}

docs_src/app_testing/app_b_an_py39/main.py

@@ -1,38 +0,0 @@
-from typing import Annotated, Union
-
-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: Union[str, None] = None
-
-
-@app.get("/items/{item_id}", response_model=Item)
-async def read_main(item_id: str, x_token: Annotated[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/")
-async def create_item(item: Item, x_token: Annotated[str, Header()]) -> Item:
-    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=409, detail="Item already exists")
-    fake_db[item.id] = item.model_dump()
-    return item

docs_src/app_testing/app_b_an_py39/test_main.py

@@ -1,65 +0,0 @@
-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_nonexistent_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 == 409
-    assert response.json() == {"detail": "Item already exists"}

docs_src/app_testing/app_b_py39/main.py

@@ -1,38 +0,0 @@
-from typing import Union
-
-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: Union[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/")
-async def create_item(item: Item, x_token: str = Header()) -> Item:
-    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=409, detail="Item already exists")
-    fake_db[item.id] = item.model_dump()
-    return item