Update app.py

app.py

@@ -45,8 +45,8 @@ def handle_message(message: str, mode: str):
         return "Select a valid mode."
 
 def chat_message(message: str):
-    
     global messages
+    
     prompt = HumanMessage(content=message)
     messages.append(prompt)
     
@@ -59,8 +59,8 @@ def chat_message(message: str):
     return f"IT-Assistant: {response.content}"
 
 def web_search(message: str):
-    
     global messages
+    
     similar_docs = db.similarity_search(message, k=3)
     
     if similar_docs:
@@ -89,6 +89,7 @@ def web_search(message: str):
     return f"IT-Assistant: {response.content}"
 
 def chart_generator(message: str):
+    global messages
 
     chart_url = f"https://quickchart.io/natural/{message}"
     response = requests.get(chart_url)