Update app.py

app.py

@@ -122,8 +122,11 @@ def render_message(history):
     <div id="chatbox-container" class="chatbox" style="height: 400px; overflow: auto; border: 1px solid #262626; padding: 10px; background-color: #171717; display: flex; flex-direction: column-reverse;">
         <div id="messages" style="display: block; margin-bottom: 10px;">"""
 
+    seen_messages = set() 
+
     for user_message, assistant_message, user_profile, assistant_profile, user_pic, assistant_pic in history:
-        if user_message:
+        if user_message and ("user", user_message) not in seen_messages:
+            seen_messages.add(("user", user_message))
             user_message_html = markdown.markdown(user_message, extensions=["fenced_code", "codehilite"])
             messages_html += f"""
             <div style='display: flex; align-items: center; margin-bottom: 10px;'>
@@ -131,7 +134,8 @@ def render_message(history):
                 <span style='color: white; white-space: pre-wrap;'>{user_message_html}</span>
             </div>"""
 
-        if assistant_message:
+        if assistant_message and ("assistant", assistant_message) not in seen_messages:
+            seen_messages.add(("assistant", assistant_message))
             assistant_message_html = markdown.markdown(assistant_message, extensions=["fenced_code", "codehilite"])
             messages_html += f"""
             <div style='display: flex; align-items: center; margin-bottom: 10px;'>