Remove code examples for Python 3.8 in `query_params`

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.py hl[9] *}
+{* ../../docs_src/query_params/tutorial001_py39.py hl[9] *}
 
 The query is the set of key-value pairs that go after the `?` in a URL, separated by `&` characters.
 
@@ -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.py hl[6:7] *}
+{* ../../docs_src/query_params/tutorial005_py39.py hl[6:7] *}
 
 Here the query parameter `needy` is a required query parameter of type `str`.
 

docs_src/query_params/tutorial006b.py

@@ -1,13 +0,0 @@
-from typing import Union
-
-from fastapi import FastAPI
-
-app = FastAPI()
-
-
-@app.get("/items/{item_id}")
-async def read_user_item(
-    item_id: str, needy: str, skip: int = 0, limit: Union[int, None] = None
-):
-    item = {"item_id": item_id, "needy": needy, "skip": skip, "limit": limit}
-    return item

tests/test_tutorial/test_query_params/test_tutorial005.py

@@ -1,7 +1,7 @@
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from docs_src.query_params.tutorial005 import app
+from docs_src.query_params.tutorial005_py39 import app
 
 client = TestClient(app)
 

tests/test_tutorial/test_query_params/test_tutorial006.py

@@ -10,7 +10,7 @@ from ...utils import needs_py310
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial006",
+        pytest.param("tutorial006_py39"),
         pytest.param("tutorial006_py310", marks=needs_py310),
     ],
 )