✨ Add docs and tests for Python 3.9 and Python 3.10 (#3712)

Co-authored-by: Thomas Grainger <tagrain@gmail.com>

docs_src/body_multiple_params/tutorial001_py310.py

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

docs_src/body_multiple_params/tutorial002_py310.py

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

docs_src/body_multiple_params/tutorial003_py310.py

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

docs_src/body_multiple_params/tutorial004_py310.py

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

docs_src/body_multiple_params/tutorial005_py310.py

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