diff --git a/examples/server/aiohttp/app.py b/examples/server/aiohttp/app.py
index 2958dd6f..c5827aec 100644
--- a/examples/server/aiohttp/app.py
+++ b/examples/server/aiohttp/app.py
@@ -1,5 +1,3 @@
-import asyncio
-
 from aiohttp import web
 
 import socketio
diff --git a/examples/server/asgi/app.py b/examples/server/asgi/app.py
index e70e3567..c6068237 100644
--- a/examples/server/asgi/app.py
+++ b/examples/server/asgi/app.py
@@ -1,6 +1,4 @@
 #!/usr/bin/env python
-import asyncio
-
 import uvicorn
 
 import socketio
diff --git a/examples/server/sanic/app.py b/examples/server/sanic/app.py
index b6e8591b..ba0ebe21 100644
--- a/examples/server/sanic/app.py
+++ b/examples/server/sanic/app.py
@@ -1,5 +1,3 @@
-import asyncio
-
 from sanic import Sanic
 from sanic.response import html
 
diff --git a/examples/server/tornado/app.py b/examples/server/tornado/app.py
index 86cf1c09..92fbfed6 100644
--- a/examples/server/tornado/app.py
+++ b/examples/server/tornado/app.py
@@ -42,6 +42,7 @@ async def join(sid, message):
     await sio.emit('my_response', {'data': 'Entered room: ' + message['room']},
                    room=sid)
 
+
 @sio.event
 async def leave(sid, message):
     sio.leave_room(sid, message['room'])
diff --git a/examples/server/wsgi/app.py b/examples/server/wsgi/app.py
index f75495b8..3339826a 100644
--- a/examples/server/wsgi/app.py
+++ b/examples/server/wsgi/app.py
@@ -3,7 +3,6 @@
 # installed
 async_mode = None
 
-import time
 from flask import Flask, render_template
 import socketio
 
diff --git a/examples/server/wsgi/django_example/django_example/settings.py b/examples/server/wsgi/django_example/django_example/settings.py
index 2affbddf..9dd3c6c3 100644
--- a/examples/server/wsgi/django_example/django_example/settings.py
+++ b/examples/server/wsgi/django_example/django_example/settings.py
@@ -1,3 +1,4 @@
+# flake8: noqa
 """
 Django settings for django_example project.
 
diff --git a/examples/server/wsgi/django_example/manage.py b/examples/server/wsgi/django_example/manage.py
index cb191820..3c56a79a 100755
--- a/examples/server/wsgi/django_example/manage.py
+++ b/examples/server/wsgi/django_example/manage.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# flake8: noqa
 import os
 import sys
 
@@ -11,7 +12,7 @@
         # issue is really that Django is missing to avoid masking other
         # exceptions on Python 2.
         try:
-            import django
+            import django  # pragma: F401
         except ImportError:
             raise ImportError(
                 "Couldn't import Django. Are you sure it's installed and "
diff --git a/examples/server/wsgi/django_example/socketio_app/admin.py b/examples/server/wsgi/django_example/socketio_app/admin.py
index 8c38f3f3..cb3d77e0 100644
--- a/examples/server/wsgi/django_example/socketio_app/admin.py
+++ b/examples/server/wsgi/django_example/socketio_app/admin.py
@@ -1,3 +1,4 @@
+# flake8: noqa
 from django.contrib import admin
 
 # Register your models here.
diff --git a/examples/server/wsgi/django_example/socketio_app/models.py b/examples/server/wsgi/django_example/socketio_app/models.py
index 71a83623..7f04f3f5 100644
--- a/examples/server/wsgi/django_example/socketio_app/models.py
+++ b/examples/server/wsgi/django_example/socketio_app/models.py
@@ -1,3 +1,4 @@
+# flake8: noqa
 from django.db import models
 
 # Create your models here.
diff --git a/examples/server/wsgi/django_example/socketio_app/tests.py b/examples/server/wsgi/django_example/socketio_app/tests.py
index 7ce503c2..eb4634db 100644
--- a/examples/server/wsgi/django_example/socketio_app/tests.py
+++ b/examples/server/wsgi/django_example/socketio_app/tests.py
@@ -1,3 +1,4 @@
+# flake8: noqa
 from django.test import TestCase
 
 # Create your tests here.
diff --git a/examples/server/wsgi/django_example/socketio_app/views.py b/examples/server/wsgi/django_example/socketio_app/views.py
index 41c8b08d..854c0fb0 100644
--- a/examples/server/wsgi/django_example/socketio_app/views.py
+++ b/examples/server/wsgi/django_example/socketio_app/views.py
@@ -80,4 +80,3 @@ def connect(sid, environ):
 @sio.event
 def disconnect(sid):
     print('Client disconnected')
-
diff --git a/tox.ini b/tox.ini
index f47e77da..b9b3541f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,7 @@ deps=
 deps=
     flake8
 commands=
-    flake8 --exclude=".*" --ignore=W503,E402,E722 src/socketio tests
+    flake8 --exclude=".*" --ignore=W503,E402,E722 src/socketio tests examples
 
 [testenv:docs]
 changedir=docs