diff --git a/docs_src/security/tutorial008.py b/docs_src/security/tutorial008.py
index 9e6c413d2..8f1e7563c 100644
--- a/docs_src/security/tutorial008.py
+++ b/docs_src/security/tutorial008.py
@@ -1,4 +1,4 @@
-from fastapi import FastAPI, Depends, HTTPException
+from fastapi import Depends, FastAPI, HTTPException
 from fastapi.security.api_key import APIKeyHeader
 
 # Replace with your actual API key, ideally injected as an Environment Variable
@@ -11,13 +11,16 @@ api_key_header = APIKeyHeader(
     description="API Key required to access secure endpoints.",
 )
 
+
 def verify_api_key(api_key: str = Depends(api_key_header)):
     if api_key != API_KEY:
         raise HTTPException(status_code=401, detail="Invalid API Key")
 
+
 # Apply it for all endpoints
 app = FastAPI(dependencies=[Depends(verify_api_key)])
 
+
 # Apply it for specific endpoints
 @app.get("/secure-data")
 def secure_endpoint(api_key: str = Depends(verify_api_key)):
diff --git a/docs_src/security/tutorial009.py b/docs_src/security/tutorial009.py
index 857d6c1c6..ccea1809f 100644
--- a/docs_src/security/tutorial009.py
+++ b/docs_src/security/tutorial009.py
@@ -1,4 +1,4 @@
-from fastapi import FastAPI, Depends, HTTPException
+from fastapi import Depends, FastAPI, HTTPException
 from fastapi.security.api_key import APIKeyCookie
 
 app = FastAPI()
@@ -7,7 +7,7 @@ app = FastAPI()
 # or stored in a secure DB.
 API_KEY = "mysecretapikey"
 
-API_KEY_NAME = "X-API-KEY" # case-sensitive!
+API_KEY_NAME = "X-API-KEY"  # case-sensitive!
 api_key_cookie = APIKeyCookie(
     name=API_KEY_NAME,
     description="API Key required to access secure endpoints.",
@@ -18,9 +18,11 @@ def verify_api_key(api_key: str = Depends(api_key_cookie)):
     if api_key != API_KEY:
         raise HTTPException(status_code=401, detail="Invalid API Key")
 
+
 # Apply it for all endpoints
 app = FastAPI(dependencies=[Depends(verify_api_key)])
 
+
 # Apply it for specific endpoints
 @app.get("/secure-data")
 def secure_endpoint(api_key: str = Depends(verify_api_key)):
diff --git a/docs_src/security/tutorial010.py b/docs_src/security/tutorial010.py
index 107a8d6cb..e20e2e383 100644
--- a/docs_src/security/tutorial010.py
+++ b/docs_src/security/tutorial010.py
@@ -1,4 +1,4 @@
-from fastapi import FastAPI, Depends, HTTPException
+from fastapi import Depends, FastAPI, HTTPException
 from fastapi.security.api_key import APIKeyQuery
 
 app = FastAPI()
@@ -18,9 +18,11 @@ def verify_api_key(api_key: str = Depends(api_key_query)):
     if api_key != API_KEY:
         raise HTTPException(status_code=401, detail="Invalid API Key")
 
+
 # Apply it for all endpoints
 app = FastAPI(dependencies=[Depends(verify_api_key)])
 
+
 # Apply it for specific endpoints
 @app.get("/secure-data")
 def secure_endpoint(api_key: str = Depends(verify_api_key)):
diff --git a/tests/test_tutorial/test_security/test_tutorial008.py b/tests/test_tutorial/test_security/test_tutorial008.py
index dd2a0b4d4..60b20c2a3 100644
--- a/tests/test_tutorial/test_security/test_tutorial008.py
+++ b/tests/test_tutorial/test_security/test_tutorial008.py
@@ -55,7 +55,6 @@ def test_apikey_header_no_credentials():
     assert response.json() == {"detail": "Not authenticated"}
 
 
-
 def test_apikey_header_invalid_credentials():
     auth = {"X-API-KEY": "totally-wrong-api-key"}
     response = client.get("/secure-data", headers=auth)
diff --git a/tests/test_tutorial/test_security/test_tutorial009.py b/tests/test_tutorial/test_security/test_tutorial009.py
index 0c429338e..39b92c2ab 100644
--- a/tests/test_tutorial/test_security/test_tutorial009.py
+++ b/tests/test_tutorial/test_security/test_tutorial009.py
@@ -2,7 +2,6 @@ from fastapi.testclient import TestClient
 
 from docs_src.security.tutorial009 import app
 
-
 openapi_schema = {
     "openapi": "3.1.0",
     "info": {"title": "FastAPI", "version": "0.1.0"},
@@ -55,6 +54,7 @@ def test_apikey_cookie_no_key():
     assert response.status_code == 403, response.text
     assert response.json() == {"detail": "Not authenticated"}
 
+
 def test_apikey_cookie_invalid_key():
     client = TestClient(app, cookies={"X-API-KEY": "wrongkey"})
     response = client.get("/secure-data")
diff --git a/tests/test_tutorial/test_security/test_tutorial010.py b/tests/test_tutorial/test_security/test_tutorial010.py
index cb519a5fd..3f55188e1 100644
--- a/tests/test_tutorial/test_security/test_tutorial010.py
+++ b/tests/test_tutorial/test_security/test_tutorial010.py
@@ -2,7 +2,6 @@ from fastapi.testclient import TestClient
 
 from docs_src.security.tutorial010 import app
 
-
 client = TestClient(app)
 
 openapi_schema = {