From 78e5794ef6b4157118605c37fb8bae97d0e3dd9f Mon Sep 17 00:00:00 2001
From: Yurii Motov <yurii.motov.monte@gmail.com>
Date: Thu, 11 Dec 2025 14:18:26 +0100
Subject: [PATCH] Remove code examples for Python 3.8 in `dependencies`

---
 .../dependencies/dependencies-with-yield.md   | 10 +++---
 .../dependencies/global-dependencies.md       |  2 +-
 docs_src/dependencies/tutorial001_02_an.py    | 25 ---------------
 docs_src/dependencies/tutorial001_an.py       | 22 -------------
 .../{tutorial001.py => tutorial001_py39.py}   |  0
 docs_src/dependencies/tutorial002_an.py       | 26 ----------------
 .../{tutorial002.py => tutorial002_py39.py}   |  0
 docs_src/dependencies/tutorial003_an.py       | 26 ----------------
 .../{tutorial003.py => tutorial003_py39.py}   |  0
 docs_src/dependencies/tutorial004_an.py       | 26 ----------------
 .../{tutorial004.py => tutorial004_py39.py}   |  0
 docs_src/dependencies/tutorial005_an.py       | 26 ----------------
 .../{tutorial005.py => tutorial005_py39.py}   |  0
 docs_src/dependencies/tutorial006_an.py       | 20 ------------
 .../{tutorial006.py => tutorial006_py39.py}   |  0
 .../{tutorial007.py => tutorial007_py39.py}   |  0
 docs_src/dependencies/tutorial008_an.py       | 26 ----------------
 .../{tutorial008.py => tutorial008_py39.py}   |  0
 docs_src/dependencies/tutorial008b_an.py      | 31 -------------------
 .../{tutorial008b.py => tutorial008b_py39.py} |  0
 docs_src/dependencies/tutorial008c_an.py      | 28 -----------------
 .../{tutorial008c.py => tutorial008c_py39.py} |  0
 docs_src/dependencies/tutorial008d_an.py      | 29 -----------------
 .../{tutorial008d.py => tutorial008d_py39.py} |  0
 docs_src/dependencies/tutorial008e_an.py      | 16 ----------
 .../{tutorial008e.py => tutorial008e_py39.py} |  0
 docs_src/dependencies/tutorial009.py          | 25 ---------------
 .../{tutorial010.py => tutorial010_py39.py}   |  0
 docs_src/dependencies/tutorial011_an.py       | 22 -------------
 .../{tutorial011.py => tutorial011_py39.py}   |  0
 docs_src/dependencies/tutorial012_an.py       | 26 ----------------
 docs_src/dependencies/tutorial012_an_py39.py  |  3 +-
 .../{tutorial012.py => tutorial012_py39.py}   |  0
 .../test_dependencies/test_tutorial001.py     |  7 ++---
 .../test_dependencies/test_tutorial004.py     |  7 ++---
 .../test_dependencies/test_tutorial006.py     |  7 ++---
 .../test_dependencies/test_tutorial008b.py    |  7 ++---
 .../test_dependencies/test_tutorial008c.py    |  7 ++---
 .../test_dependencies/test_tutorial008d.py    |  7 ++---
 .../test_dependencies/test_tutorial008e.py    |  7 ++---
 .../test_dependencies/test_tutorial012.py     |  7 ++---
 41 files changed, 26 insertions(+), 419 deletions(-)
 delete mode 100644 docs_src/dependencies/tutorial001_02_an.py
 delete mode 100644 docs_src/dependencies/tutorial001_an.py
 rename docs_src/dependencies/{tutorial001.py => tutorial001_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial002_an.py
 rename docs_src/dependencies/{tutorial002.py => tutorial002_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial003_an.py
 rename docs_src/dependencies/{tutorial003.py => tutorial003_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial004_an.py
 rename docs_src/dependencies/{tutorial004.py => tutorial004_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial005_an.py
 rename docs_src/dependencies/{tutorial005.py => tutorial005_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial006_an.py
 rename docs_src/dependencies/{tutorial006.py => tutorial006_py39.py} (100%)
 rename docs_src/dependencies/{tutorial007.py => tutorial007_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial008_an.py
 rename docs_src/dependencies/{tutorial008.py => tutorial008_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial008b_an.py
 rename docs_src/dependencies/{tutorial008b.py => tutorial008b_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial008c_an.py
 rename docs_src/dependencies/{tutorial008c.py => tutorial008c_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial008d_an.py
 rename docs_src/dependencies/{tutorial008d.py => tutorial008d_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial008e_an.py
 rename docs_src/dependencies/{tutorial008e.py => tutorial008e_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial009.py
 rename docs_src/dependencies/{tutorial010.py => tutorial010_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial011_an.py
 rename docs_src/dependencies/{tutorial011.py => tutorial011_py39.py} (100%)
 delete mode 100644 docs_src/dependencies/tutorial012_an.py
 rename docs_src/dependencies/{tutorial012.py => tutorial012_py39.py} (100%)

diff --git a/docs/en/docs/tutorial/dependencies/dependencies-with-yield.md b/docs/en/docs/tutorial/dependencies/dependencies-with-yield.md
index 494c40efa..d9f334561 100644
--- a/docs/en/docs/tutorial/dependencies/dependencies-with-yield.md
+++ b/docs/en/docs/tutorial/dependencies/dependencies-with-yield.md
@@ -29,15 +29,15 @@ For example, you could use this to create a database session and close it after
 
 Only the code prior to and including the `yield` statement is executed before creating a response:
 
-{* ../../docs_src/dependencies/tutorial007.py hl[2:4] *}
+{* ../../docs_src/dependencies/tutorial007_py39.py hl[2:4] *}
 
 The yielded value is what is injected into *path operations* and other dependencies:
 
-{* ../../docs_src/dependencies/tutorial007.py hl[4] *}
+{* ../../docs_src/dependencies/tutorial007_py39.py hl[4] *}
 
 The code following the `yield` statement is executed after the response:
 
-{* ../../docs_src/dependencies/tutorial007.py hl[5:6] *}
+{* ../../docs_src/dependencies/tutorial007_py39.py hl[5:6] *}
 
 /// tip
 
@@ -57,7 +57,7 @@ So, you can look for that specific exception inside the dependency with `except
 
 In the same way, you can use `finally` to make sure the exit steps are executed, no matter if there was an exception or not.
 
-{* ../../docs_src/dependencies/tutorial007.py hl[3,5] *}
+{* ../../docs_src/dependencies/tutorial007_py39.py hl[3,5] *}
 
 ## Sub-dependencies with `yield` { #sub-dependencies-with-yield }
 
@@ -269,7 +269,7 @@ In Python, you can create Context Managers by <a href="https://docs.python.org/3
 You can also use them inside of **FastAPI** dependencies with `yield` by using
 `with` or `async with` statements inside of the dependency function:
 
-{* ../../docs_src/dependencies/tutorial010.py hl[1:9,13] *}
+{* ../../docs_src/dependencies/tutorial010_py39.py hl[1:9,13] *}
 
 /// tip
 
diff --git a/docs/en/docs/tutorial/dependencies/global-dependencies.md b/docs/en/docs/tutorial/dependencies/global-dependencies.md
index 5814397e5..df5af2dff 100644
--- a/docs/en/docs/tutorial/dependencies/global-dependencies.md
+++ b/docs/en/docs/tutorial/dependencies/global-dependencies.md
@@ -6,7 +6,7 @@ Similar to the way you can [add `dependencies` to the *path operation decorators
 
 In that case, they will be applied to all the *path operations* in the application:
 
-{* ../../docs_src/dependencies/tutorial012_an_py39.py hl[16] *}
+{* ../../docs_src/dependencies/tutorial012_an_py39.py hl[17] *}
 
 
 And all the ideas in the section about [adding `dependencies` to the *path operation decorators*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank} still apply, but in this case, to all of the *path operations* in the app.
diff --git a/docs_src/dependencies/tutorial001_02_an.py b/docs_src/dependencies/tutorial001_02_an.py
deleted file mode 100644
index 455d60c82..000000000
--- a/docs_src/dependencies/tutorial001_02_an.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from typing import Union
-
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-async def common_parameters(
-    q: Union[str, None] = None, skip: int = 0, limit: int = 100
-):
-    return {"q": q, "skip": skip, "limit": limit}
-
-
-CommonsDep = Annotated[dict, Depends(common_parameters)]
-
-
-@app.get("/items/")
-async def read_items(commons: CommonsDep):
-    return commons
-
-
-@app.get("/users/")
-async def read_users(commons: CommonsDep):
-    return commons
diff --git a/docs_src/dependencies/tutorial001_an.py b/docs_src/dependencies/tutorial001_an.py
deleted file mode 100644
index 81e24fe86..000000000
--- a/docs_src/dependencies/tutorial001_an.py
+++ /dev/null
@@ -1,22 +0,0 @@
-from typing import Union
-
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-async def common_parameters(
-    q: Union[str, None] = None, skip: int = 0, limit: int = 100
-):
-    return {"q": q, "skip": skip, "limit": limit}
-
-
-@app.get("/items/")
-async def read_items(commons: Annotated[dict, Depends(common_parameters)]):
-    return commons
-
-
-@app.get("/users/")
-async def read_users(commons: Annotated[dict, Depends(common_parameters)]):
-    return commons
diff --git a/docs_src/dependencies/tutorial001.py b/docs_src/dependencies/tutorial001_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial001.py
rename to docs_src/dependencies/tutorial001_py39.py
diff --git a/docs_src/dependencies/tutorial002_an.py b/docs_src/dependencies/tutorial002_an.py
deleted file mode 100644
index 964ccf66c..000000000
--- a/docs_src/dependencies/tutorial002_an.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from typing import Union
-
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]
-
-
-class CommonQueryParams:
-    def __init__(self, q: Union[str, None] = None, skip: int = 0, limit: int = 100):
-        self.q = q
-        self.skip = skip
-        self.limit = limit
-
-
-@app.get("/items/")
-async def read_items(commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]):
-    response = {}
-    if commons.q:
-        response.update({"q": commons.q})
-    items = fake_items_db[commons.skip : commons.skip + commons.limit]
-    response.update({"items": items})
-    return response
diff --git a/docs_src/dependencies/tutorial002.py b/docs_src/dependencies/tutorial002_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial002.py
rename to docs_src/dependencies/tutorial002_py39.py
diff --git a/docs_src/dependencies/tutorial003_an.py b/docs_src/dependencies/tutorial003_an.py
deleted file mode 100644
index ba8e9f717..000000000
--- a/docs_src/dependencies/tutorial003_an.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from typing import Any, Union
-
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]
-
-
-class CommonQueryParams:
-    def __init__(self, q: Union[str, None] = None, skip: int = 0, limit: int = 100):
-        self.q = q
-        self.skip = skip
-        self.limit = limit
-
-
-@app.get("/items/")
-async def read_items(commons: Annotated[Any, Depends(CommonQueryParams)]):
-    response = {}
-    if commons.q:
-        response.update({"q": commons.q})
-    items = fake_items_db[commons.skip : commons.skip + commons.limit]
-    response.update({"items": items})
-    return response
diff --git a/docs_src/dependencies/tutorial003.py b/docs_src/dependencies/tutorial003_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial003.py
rename to docs_src/dependencies/tutorial003_py39.py
diff --git a/docs_src/dependencies/tutorial004_an.py b/docs_src/dependencies/tutorial004_an.py
deleted file mode 100644
index 78881a354..000000000
--- a/docs_src/dependencies/tutorial004_an.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from typing import Union
-
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]
-
-
-class CommonQueryParams:
-    def __init__(self, q: Union[str, None] = None, skip: int = 0, limit: int = 100):
-        self.q = q
-        self.skip = skip
-        self.limit = limit
-
-
-@app.get("/items/")
-async def read_items(commons: Annotated[CommonQueryParams, Depends()]):
-    response = {}
-    if commons.q:
-        response.update({"q": commons.q})
-    items = fake_items_db[commons.skip : commons.skip + commons.limit]
-    response.update({"items": items})
-    return response
diff --git a/docs_src/dependencies/tutorial004.py b/docs_src/dependencies/tutorial004_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial004.py
rename to docs_src/dependencies/tutorial004_py39.py
diff --git a/docs_src/dependencies/tutorial005_an.py b/docs_src/dependencies/tutorial005_an.py
deleted file mode 100644
index 1d78c17a2..000000000
--- a/docs_src/dependencies/tutorial005_an.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from typing import Union
-
-from fastapi import Cookie, Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-def query_extractor(q: Union[str, None] = None):
-    return q
-
-
-def query_or_cookie_extractor(
-    q: Annotated[str, Depends(query_extractor)],
-    last_query: Annotated[Union[str, None], Cookie()] = None,
-):
-    if not q:
-        return last_query
-    return q
-
-
-@app.get("/items/")
-async def read_query(
-    query_or_default: Annotated[str, Depends(query_or_cookie_extractor)],
-):
-    return {"q_or_cookie": query_or_default}
diff --git a/docs_src/dependencies/tutorial005.py b/docs_src/dependencies/tutorial005_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial005.py
rename to docs_src/dependencies/tutorial005_py39.py
diff --git a/docs_src/dependencies/tutorial006_an.py b/docs_src/dependencies/tutorial006_an.py
deleted file mode 100644
index 5aaea04d1..000000000
--- a/docs_src/dependencies/tutorial006_an.py
+++ /dev/null
@@ -1,20 +0,0 @@
-from fastapi import Depends, FastAPI, Header, HTTPException
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-async def verify_token(x_token: Annotated[str, Header()]):
-    if x_token != "fake-super-secret-token":
-        raise HTTPException(status_code=400, detail="X-Token header invalid")
-
-
-async def verify_key(x_key: Annotated[str, Header()]):
-    if x_key != "fake-super-secret-key":
-        raise HTTPException(status_code=400, detail="X-Key header invalid")
-    return x_key
-
-
-@app.get("/items/", dependencies=[Depends(verify_token), Depends(verify_key)])
-async def read_items():
-    return [{"item": "Foo"}, {"item": "Bar"}]
diff --git a/docs_src/dependencies/tutorial006.py b/docs_src/dependencies/tutorial006_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial006.py
rename to docs_src/dependencies/tutorial006_py39.py
diff --git a/docs_src/dependencies/tutorial007.py b/docs_src/dependencies/tutorial007_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial007.py
rename to docs_src/dependencies/tutorial007_py39.py
diff --git a/docs_src/dependencies/tutorial008_an.py b/docs_src/dependencies/tutorial008_an.py
deleted file mode 100644
index 2de86f042..000000000
--- a/docs_src/dependencies/tutorial008_an.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from fastapi import Depends
-from typing_extensions import Annotated
-
-
-async def dependency_a():
-    dep_a = generate_dep_a()
-    try:
-        yield dep_a
-    finally:
-        dep_a.close()
-
-
-async def dependency_b(dep_a: Annotated[DepA, Depends(dependency_a)]):
-    dep_b = generate_dep_b()
-    try:
-        yield dep_b
-    finally:
-        dep_b.close(dep_a)
-
-
-async def dependency_c(dep_b: Annotated[DepB, Depends(dependency_b)]):
-    dep_c = generate_dep_c()
-    try:
-        yield dep_c
-    finally:
-        dep_c.close(dep_b)
diff --git a/docs_src/dependencies/tutorial008.py b/docs_src/dependencies/tutorial008_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial008.py
rename to docs_src/dependencies/tutorial008_py39.py
diff --git a/docs_src/dependencies/tutorial008b_an.py b/docs_src/dependencies/tutorial008b_an.py
deleted file mode 100644
index 84d8f12c1..000000000
--- a/docs_src/dependencies/tutorial008b_an.py
+++ /dev/null
@@ -1,31 +0,0 @@
-from fastapi import Depends, FastAPI, HTTPException
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-data = {
-    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
-    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
-}
-
-
-class OwnerError(Exception):
-    pass
-
-
-def get_username():
-    try:
-        yield "Rick"
-    except OwnerError as e:
-        raise HTTPException(status_code=400, detail=f"Owner error: {e}")
-
-
-@app.get("/items/{item_id}")
-def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):
-    if item_id not in data:
-        raise HTTPException(status_code=404, detail="Item not found")
-    item = data[item_id]
-    if item["owner"] != username:
-        raise OwnerError(username)
-    return item
diff --git a/docs_src/dependencies/tutorial008b.py b/docs_src/dependencies/tutorial008b_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial008b.py
rename to docs_src/dependencies/tutorial008b_py39.py
diff --git a/docs_src/dependencies/tutorial008c_an.py b/docs_src/dependencies/tutorial008c_an.py
deleted file mode 100644
index 94f59f9aa..000000000
--- a/docs_src/dependencies/tutorial008c_an.py
+++ /dev/null
@@ -1,28 +0,0 @@
-from fastapi import Depends, FastAPI, HTTPException
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-class InternalError(Exception):
-    pass
-
-
-def get_username():
-    try:
-        yield "Rick"
-    except InternalError:
-        print("Oops, we didn't raise again, Britney 😱")
-
-
-@app.get("/items/{item_id}")
-def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):
-    if item_id == "portal-gun":
-        raise InternalError(
-            f"The portal gun is too dangerous to be owned by {username}"
-        )
-    if item_id != "plumbus":
-        raise HTTPException(
-            status_code=404, detail="Item not found, there's only a plumbus here"
-        )
-    return item_id
diff --git a/docs_src/dependencies/tutorial008c.py b/docs_src/dependencies/tutorial008c_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial008c.py
rename to docs_src/dependencies/tutorial008c_py39.py
diff --git a/docs_src/dependencies/tutorial008d_an.py b/docs_src/dependencies/tutorial008d_an.py
deleted file mode 100644
index c35424574..000000000
--- a/docs_src/dependencies/tutorial008d_an.py
+++ /dev/null
@@ -1,29 +0,0 @@
-from fastapi import Depends, FastAPI, HTTPException
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-class InternalError(Exception):
-    pass
-
-
-def get_username():
-    try:
-        yield "Rick"
-    except InternalError:
-        print("We don't swallow the internal error here, we raise again 😎")
-        raise
-
-
-@app.get("/items/{item_id}")
-def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):
-    if item_id == "portal-gun":
-        raise InternalError(
-            f"The portal gun is too dangerous to be owned by {username}"
-        )
-    if item_id != "plumbus":
-        raise HTTPException(
-            status_code=404, detail="Item not found, there's only a plumbus here"
-        )
-    return item_id
diff --git a/docs_src/dependencies/tutorial008d.py b/docs_src/dependencies/tutorial008d_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial008d.py
rename to docs_src/dependencies/tutorial008d_py39.py
diff --git a/docs_src/dependencies/tutorial008e_an.py b/docs_src/dependencies/tutorial008e_an.py
deleted file mode 100644
index c8a0af2b3..000000000
--- a/docs_src/dependencies/tutorial008e_an.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-def get_username():
-    try:
-        yield "Rick"
-    finally:
-        print("Cleanup up before response is sent")
-
-
-@app.get("/users/me")
-def get_user_me(username: Annotated[str, Depends(get_username, scope="function")]):
-    return username
diff --git a/docs_src/dependencies/tutorial008e.py b/docs_src/dependencies/tutorial008e_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial008e.py
rename to docs_src/dependencies/tutorial008e_py39.py
diff --git a/docs_src/dependencies/tutorial009.py b/docs_src/dependencies/tutorial009.py
deleted file mode 100644
index 8472f642d..000000000
--- a/docs_src/dependencies/tutorial009.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from fastapi import Depends
-
-
-async def dependency_a():
-    dep_a = generate_dep_a()
-    try:
-        yield dep_a
-    finally:
-        dep_a.close()
-
-
-async def dependency_b(dep_a=Depends(dependency_a)):
-    dep_b = generate_dep_b()
-    try:
-        yield dep_b
-    finally:
-        dep_b.close(dep_a)
-
-
-async def dependency_c(dep_b=Depends(dependency_b)):
-    dep_c = generate_dep_c()
-    try:
-        yield dep_c
-    finally:
-        dep_c.close(dep_b)
diff --git a/docs_src/dependencies/tutorial010.py b/docs_src/dependencies/tutorial010_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial010.py
rename to docs_src/dependencies/tutorial010_py39.py
diff --git a/docs_src/dependencies/tutorial011_an.py b/docs_src/dependencies/tutorial011_an.py
deleted file mode 100644
index 6c13d9033..000000000
--- a/docs_src/dependencies/tutorial011_an.py
+++ /dev/null
@@ -1,22 +0,0 @@
-from fastapi import Depends, FastAPI
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-class FixedContentQueryChecker:
-    def __init__(self, fixed_content: str):
-        self.fixed_content = fixed_content
-
-    def __call__(self, q: str = ""):
-        if q:
-            return self.fixed_content in q
-        return False
-
-
-checker = FixedContentQueryChecker("bar")
-
-
-@app.get("/query-checker/")
-async def read_query_check(fixed_content_included: Annotated[bool, Depends(checker)]):
-    return {"fixed_content_in_query": fixed_content_included}
diff --git a/docs_src/dependencies/tutorial011.py b/docs_src/dependencies/tutorial011_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial011.py
rename to docs_src/dependencies/tutorial011_py39.py
diff --git a/docs_src/dependencies/tutorial012_an.py b/docs_src/dependencies/tutorial012_an.py
deleted file mode 100644
index 7541e6bf4..000000000
--- a/docs_src/dependencies/tutorial012_an.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from fastapi import Depends, FastAPI, Header, HTTPException
-from typing_extensions import Annotated
-
-
-async def verify_token(x_token: Annotated[str, Header()]):
-    if x_token != "fake-super-secret-token":
-        raise HTTPException(status_code=400, detail="X-Token header invalid")
-
-
-async def verify_key(x_key: Annotated[str, Header()]):
-    if x_key != "fake-super-secret-key":
-        raise HTTPException(status_code=400, detail="X-Key header invalid")
-    return x_key
-
-
-app = FastAPI(dependencies=[Depends(verify_token), Depends(verify_key)])
-
-
-@app.get("/items/")
-async def read_items():
-    return [{"item": "Portal Gun"}, {"item": "Plumbus"}]
-
-
-@app.get("/users/")
-async def read_users():
-    return [{"username": "Rick"}, {"username": "Morty"}]
diff --git a/docs_src/dependencies/tutorial012_an_py39.py b/docs_src/dependencies/tutorial012_an_py39.py
index 7541e6bf4..6503591fc 100644
--- a/docs_src/dependencies/tutorial012_an_py39.py
+++ b/docs_src/dependencies/tutorial012_an_py39.py
@@ -1,5 +1,6 @@
+from typing import Annotated
+
 from fastapi import Depends, FastAPI, Header, HTTPException
-from typing_extensions import Annotated
 
 
 async def verify_token(x_token: Annotated[str, Header()]):
diff --git a/docs_src/dependencies/tutorial012.py b/docs_src/dependencies/tutorial012_py39.py
similarity index 100%
rename from docs_src/dependencies/tutorial012.py
rename to docs_src/dependencies/tutorial012_py39.py
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial001.py b/tests/test_tutorial/test_dependencies/test_tutorial001.py
index ed9944912..8dac99cf3 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial001.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial001.py
@@ -4,16 +4,15 @@ import pytest
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39, needs_py310
+from ...utils import needs_py310
 
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial001",
+        pytest.param("tutorial001_py39"),
         pytest.param("tutorial001_py310", marks=needs_py310),
-        "tutorial001_an",
-        pytest.param("tutorial001_an_py39", marks=needs_py39),
+        pytest.param("tutorial001_an_py39"),
         pytest.param("tutorial001_an_py310", marks=needs_py310),
     ],
 )
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial004.py b/tests/test_tutorial/test_dependencies/test_tutorial004.py
index 8221c83d4..8a1346d0d 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial004.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial004.py
@@ -4,16 +4,15 @@ import pytest
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39, needs_py310
+from ...utils import needs_py310
 
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial004",
+        pytest.param("tutorial004_py39"),
         pytest.param("tutorial004_py310", marks=needs_py310),
-        "tutorial004_an",
-        pytest.param("tutorial004_an_py39", marks=needs_py39),
+        pytest.param("tutorial004_an_py39"),
         pytest.param("tutorial004_an_py310", marks=needs_py310),
     ],
 )
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial006.py b/tests/test_tutorial/test_dependencies/test_tutorial006.py
index 4530762f7..46f0066f9 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial006.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial006.py
@@ -4,15 +4,12 @@ import pytest
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial006",
-        "tutorial006_an",
-        pytest.param("tutorial006_an_py39", marks=needs_py39),
+        pytest.param("tutorial006_py39"),
+        pytest.param("tutorial006_an_py39"),
     ],
 )
 def get_client(request: pytest.FixtureRequest):
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial008b.py b/tests/test_tutorial/test_dependencies/test_tutorial008b.py
index 4d7092265..91e00b370 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial008b.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial008b.py
@@ -3,15 +3,12 @@ import importlib
 import pytest
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial008b",
-        "tutorial008b_an",
-        pytest.param("tutorial008b_an_py39", marks=needs_py39),
+        pytest.param("tutorial008b_py39"),
+        pytest.param("tutorial008b_an_py39"),
     ],
 )
 def get_client(request: pytest.FixtureRequest):
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial008c.py b/tests/test_tutorial/test_dependencies/test_tutorial008c.py
index 369b0a221..aede6f8d2 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial008c.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial008c.py
@@ -5,15 +5,12 @@ import pytest
 from fastapi.exceptions import FastAPIError
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="mod",
     params=[
-        "tutorial008c",
-        "tutorial008c_an",
-        pytest.param("tutorial008c_an_py39", marks=needs_py39),
+        pytest.param("tutorial008c_py39"),
+        pytest.param("tutorial008c_an_py39"),
     ],
 )
 def get_mod(request: pytest.FixtureRequest):
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial008d.py b/tests/test_tutorial/test_dependencies/test_tutorial008d.py
index bc99bb383..5477f8b95 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial008d.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial008d.py
@@ -4,15 +4,12 @@ from types import ModuleType
 import pytest
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="mod",
     params=[
-        "tutorial008d",
-        "tutorial008d_an",
-        pytest.param("tutorial008d_an_py39", marks=needs_py39),
+        pytest.param("tutorial008d_py39"),
+        pytest.param("tutorial008d_an_py39"),
     ],
 )
 def get_mod(request: pytest.FixtureRequest):
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial008e.py b/tests/test_tutorial/test_dependencies/test_tutorial008e.py
index 1ae9ab2cd..c433157ea 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial008e.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial008e.py
@@ -3,15 +3,12 @@ import importlib
 import pytest
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial008e",
-        "tutorial008e_an",
-        pytest.param("tutorial008e_an_py39", marks=needs_py39),
+        pytest.param("tutorial008e_py39"),
+        pytest.param("tutorial008e_an_py39"),
     ],
 )
 def get_client(request: pytest.FixtureRequest):
diff --git a/tests/test_tutorial/test_dependencies/test_tutorial012.py b/tests/test_tutorial/test_dependencies/test_tutorial012.py
index 0af17e9bc..b791ee0aa 100644
--- a/tests/test_tutorial/test_dependencies/test_tutorial012.py
+++ b/tests/test_tutorial/test_dependencies/test_tutorial012.py
@@ -4,15 +4,12 @@ import pytest
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39
-
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial012",
-        "tutorial012_an",
-        pytest.param("tutorial012_an_py39", marks=needs_py39),
+        pytest.param("tutorial012_py39"),
+        pytest.param("tutorial012_an_py39"),
     ],
 )
 def get_client(request: pytest.FixtureRequest):