Sync fastapi docs from 50fa3f7c on 2026-01-11

docs_src/path_operation_advanced_configuration/tutorial004_py310.py

@@ -0,0 +1,28 @@
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str | None = None
+    price: float
+    tax: float | None = None
+    tags: set[str] = set()
+
+
+@app.post("/items/", response_model=Item, summary="Create an item")
+async def create_item(item: Item):
+    """
+    Create an item with all the information:
+
+    - **name**: each item must have a name
+    - **description**: a long description
+    - **price**: required
+    - **tax**: if the item doesn't have tax, you can omit this
+    - **tags**: a set of unique tag strings for this item
+    \f
+    :param item: User input.
+    """
+    return item

docs_src/path_operation_advanced_configuration/tutorial004_py39.py

@@ -1,4 +1,4 @@
-from typing import Set, Union
+from typing import Union
 
 from fastapi import FastAPI
 from pydantic import BaseModel
@@ -11,7 +11,7 @@ class Item(BaseModel):
     description: Union[str, None] = None
     price: float
     tax: Union[float, None] = None
-    tags: Set[str] = set()
+    tags: set[str] = set()
 
 
 @app.post("/items/", response_model=Item, summary="Create an item")

docs_src/path_operation_advanced_configuration/tutorial007_pv1_py39.py

@@ -1,15 +1,13 @@
-from typing import List
-
 import yaml
 from fastapi import FastAPI, HTTPException, Request
-from pydantic import BaseModel, ValidationError
+from pydantic.v1 import BaseModel, ValidationError
 
 app = FastAPI()
 
 
 class Item(BaseModel):
     name: str
-    tags: List[str]
+    tags: list[str]
 
 
 @app.post(

docs_src/path_operation_advanced_configuration/tutorial007_py39.py

@@ -1,5 +1,3 @@
-from typing import List
-
 import yaml
 from fastapi import FastAPI, HTTPException, Request
 from pydantic import BaseModel, ValidationError
@@ -9,7 +7,7 @@ app = FastAPI()
 
 class Item(BaseModel):
     name: str
-    tags: List[str]
+    tags: list[str]
 
 
 @app.post(