pics tryout

app.py

@@ -93,8 +93,7 @@ def answer_post(target_post_id):
 
 ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif', 'mp4', 'webm', 'webp'}
 def allowed_file(filename):
-    return '.' in filename and \
-           filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
+    return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
 
 @app.route('/post_to_another_post/<post_key>', methods=['POST'])
 def post_to_post(post_key):
@@ -163,8 +162,9 @@ def post_to_post(post_key):
 
 
 #### TODO websockets
+#### TODO sse
 #### TODO kafka
-#### TODO shards 
+#### TODO shards
 #### TODO grpc