Update app.py

app.py

@@ -64,9 +64,15 @@ async def train_and_save_model():
             user_questions = r.lrange('user_questions', 0, -1)
             for question in user_questions:
                 question = question.decode('utf-8')
-                documents.append((nltk.word_tokenize(question), "unknown"))
-                if "unknown" not in classes:
-                    classes.append("unknown")
+                try:
+                    existing_tag = r.get(f"tag:{question}").decode('utf-8')
+                    documents.append((nltk.word_tokenize(question), existing_tag))
+                    if existing_tag not in classes:
+                        classes.append(existing_tag)
+                except AttributeError:
+                    documents.append((nltk.word_tokenize(question), "unknown"))
+                    if "unknown" not in classes:
+                        classes.append("unknown")
             r.set('user_questions_loaded', 1)
 
         for intent in intents['intents']: