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  1. docs_src/query_params/tutorial002_py310.py

    from fastapi import FastAPI
    
    app = FastAPI()
    
    
    @app.get("/items/{item_id}")
    async def read_item(item_id: str, q: str | None = None):
        if q:
            return {"item_id": item_id, "q": q}
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Fri Jan 07 14:11:31 GMT 2022
    - 219 bytes
    - Click Count (0)
  2. docs/tr/docs/index.md

    app = FastAPI()
    
    
    class Item(BaseModel):
        name: str
        price: float
        is_offer: Union[bool, None] = None
    
    
    @app.get("/")
    def read_root():
        return {"Hello": "World"}
    
    
    @app.get("/items/{item_id}")
    def read_item(item_id: int, q: Union[str, None] = None):
        return {"item_id": item_id, "q": q}
    
    
    @app.put("/items/{item_id}")
    def update_item(item_id: int, item: Item):
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Sat Oct 11 17:48:49 GMT 2025
    - 21.9K bytes
    - Click Count (0)
  3. docs_src/pydantic_v1_in_v2/tutorial001_an_py310.py

    from pydantic.v1 import BaseModel
    
    
    class Item(BaseModel):
        name: str
        description: str | None = None
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Sat Oct 11 16:45:54 GMT 2025
    - 124 bytes
    - Click Count (0)
  4. docs_src/header_params/tutorial003_py39.py

    from typing import Union
    
    from fastapi import FastAPI, Header
    
    app = FastAPI()
    
    
    @app.get("/items/")
    async def read_items(x_token: Union[list[str], None] = Header(default=None)):
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Sat May 14 11:59:59 GMT 2022
    - 218 bytes
    - Click Count (0)
  5. fastapi/datastructures.py

                    """
                ),
            ],
        ) -> None:
            """
            Move to a position in the file.
    
            Any next read or write will be done from that position.
    
            To be awaitable, compatible with async, this is run in threadpool.
            """
            return await super().seek(offset)
    
        async def close(self) -> None:
            """
            Close the file.
    
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Sat Dec 27 12:54:56 GMT 2025
    - 5.1K bytes
    - Click Count (0)
  6. docs_src/query_params_str_validations/tutorial011_an_py39.py

    from typing import Annotated, Union
    
    from fastapi import FastAPI, Query
    
    app = FastAPI()
    
    
    @app.get("/items/")
    async def read_items(q: Annotated[Union[list[str], None], Query()] = None):
        query_items = {"q": q}
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Sat Mar 18 12:29:59 GMT 2023
    - 237 bytes
    - Click Count (0)
  7. docs/pt/docs/python-types.md

    ```
    
    ////
    
    Em ambos os casos, isso significa que `item` poderia ser um `int` ou um `str`.
    
    #### Possivelmente `None` { #possibly-none }
    
    Você pode declarar que um valor pode ter um tipo, como `str`, mas que ele também pode ser `None`.
    
    No Python 3.6 e superior (incluindo o Python 3.10) você pode declará-lo importando e utilizando `Optional` do módulo `typing`.
    
    ```Python hl_lines="1  4"
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Wed Dec 17 20:41:43 GMT 2025
    - 16.7K bytes
    - Click Count (0)
  8. docs/es/docs/python-types.md

    ```
    
    ////
    
    En ambos casos, esto significa que `item` podría ser un `int` o un `str`.
    
    #### Posiblemente `None` { #possibly-none }
    
    Puedes declarar que un valor podría tener un tipo, como `str`, pero que también podría ser `None`.
    
    En Python 3.6 y posteriores (incluyendo Python 3.10) puedes declararlo importando y usando `Optional` del módulo `typing`.
    
    ```Python hl_lines="1  4"
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Wed Dec 17 20:41:43 GMT 2025
    - 16.4K bytes
    - Click Count (1)
  9. docs_src/pydantic_v1_in_v2/tutorial002_an_py310.py

    from fastapi import FastAPI
    from pydantic.v1 import BaseModel
    
    
    class Item(BaseModel):
        name: str
        description: str | None = None
        size: float
    
    
    app = FastAPI()
    
    
    @app.post("/items/")
    async def create_item(item: Item) -> Item:
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Sat Oct 11 16:45:54 GMT 2025
    - 252 bytes
    - Click Count (0)
  10. docs_src/query_params/tutorial002_py39.py

    from typing import Union
    
    from fastapi import FastAPI
    
    app = FastAPI()
    
    
    @app.get("/items/{item_id}")
    async def read_item(item_id: str, q: Union[str, None] = None):
        if q:
            return {"item_id": item_id, "q": q}
    Created: Sun Dec 28 07:19:09 GMT 2025
    - Last Modified: Wed Dec 17 20:41:43 GMT 2025
    - 251 bytes
    - Click Count (0)
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