demo/routes.py

@@ -1,6 +1,7 @@
 from .views import frontend
 import aiohttp
 
-def setup_routes(app):
-  app.router.add_routes([aiohttp.web.get('/', frontend.index), aiohttp.web.post('/button-clicked', frontend.button_clicked)])
 
+def setup_routes(app):
+    app.router.add_routes(
+        [aiohttp.web.get('/', frontend.index), aiohttp.web.post('/button-clicked', frontend.button_clicked)])

demo/views/frontend.py

@@ -3,11 +3,10 @@ import aiohttp
 from aiohttp_jinja2 import template
 
 
-
 @template('index.html')
 async def index(request):
     return {}
 
 
 async def button_clicked(request):
-    return aiohttp.web.json_response({'result':'Button was clicked'})
+    return aiohttp.web.json_response({'result': 'Button was clicked'})

entry.py

@@ -1,14 +1,7 @@
 import aiohttp
 from demo import create_app
 
-
-
-
-
 app = create_app()
 
-
-
-
 if __name__ == '__main__':
-  aiohttp.web.run_app(app)
+    aiohttp.web.run_app(app)