Remove code examples for Python 3.8 in `body_nested_models`

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

@@ -14,35 +14,15 @@ This will make `tags` be a list, although it doesn't declare the type of the ele
 
 But Python has a specific way to declare lists with internal types, or "type parameters":
 
-### Import typing's `List` { #import-typings-list }
-
-In Python 3.9 and above you can use the standard `list` to declare these type annotations as we'll see below. 💡
-
-But in Python versions before 3.9 (3.6 and above), you first need to import `List` from standard Python's `typing` module:
-
-{* ../../docs_src/body_nested_models/tutorial002.py hl[1] *}
-
 ### Declare a `list` with a type parameter { #declare-a-list-with-a-type-parameter }
 
-To declare types that have type parameters (internal types), like `list`, `dict`, `tuple`:
-
-* If you are in a Python version lower than 3.9, import their equivalent version from the `typing` module
-* Pass the internal type(s) as "type parameters" using square brackets: `[` and `]`
-
-In Python 3.9 it would be:
+To declare types that have type parameters (internal types), like `list`, `dict`, `tuple`,
+pass the internal type(s) as "type parameters" using square brackets: `[` and `]`
 
 ```Python
 my_list: list[str]
 ```
 
-In versions of Python before 3.9, it would be:
-
-```Python
-from typing import List
-
-my_list: List[str]
-```
-
 That's all standard Python syntax for type declarations.
 
 Use that same standard syntax for model attributes with internal types.
@@ -178,12 +158,6 @@ Notice how `Offer` has a list of `Item`s, which in turn have an optional list of
 
 If the top level value of the JSON body you expect is a JSON `array` (a Python `list`), you can declare the type in the parameter of the function, the same as in Pydantic models:
 
-```Python
-images: List[Image]
-```
-
-or in Python 3.9 and above:
-
 ```Python
 images: list[Image]
 ```

docs_src/body_nested_models/tutorial002.py

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

docs_src/body_nested_models/tutorial003.py

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

docs_src/body_nested_models/tutorial004.py

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

docs_src/body_nested_models/tutorial005.py

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

docs_src/body_nested_models/tutorial006.py

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

docs_src/body_nested_models/tutorial007.py

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

docs_src/body_nested_models/tutorial008.py

@@ -1,16 +0,0 @@
-from typing import List
-
-from fastapi import FastAPI
-from pydantic import BaseModel, HttpUrl
-
-app = FastAPI()
-
-
-class Image(BaseModel):
-    url: HttpUrl
-    name: str
-
-
-@app.post("/images/multiple/")
-async def create_multiple_images(images: List[Image]):
-    return images

docs_src/body_nested_models/tutorial009.py

@@ -1,10 +0,0 @@
-from typing import Dict
-
-from fastapi import FastAPI
-
-app = FastAPI()
-
-
-@app.post("/index-weights/")
-async def create_index_weights(weights: Dict[int, float]):
-    return weights

tests/test_tutorial/test_body_nested_models/test_tutorial009.py

@@ -4,14 +4,11 @@ import pytest
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial009",
-        pytest.param("tutorial009_py39", marks=needs_py39),
+        "tutorial009_py39",
     ],
 )
 def get_client(request: pytest.FixtureRequest):