Update app.py

app.py

@@ -133,7 +133,7 @@ class Preprocessor:
 
 def No_Rumors(tx):
     no_of_tweets = api.get_user(screen_name="No_Rumors").statuses_count 
-    tweets = tweepy.Cursor(api.user_timeline,screen_name=username, tweet_mode="extended").items(no_of_tweets)
+    tweets = tweepy.Cursor(api.user_timeline,screen_name="No_Rumors", tweet_mode="extended").items(no_of_tweets)
     data = []
     for i in tweets:
         data.append({"text":i.full_text})