Update app.py

app.py

@@ -628,7 +628,7 @@ def handle_user_input(user_input: str):
                 # Enhanced streaming with chunking
                 for chunk in interpreter.chat(user_input, stream=True, display=False):
                     if isinstance(chunk, dict):
-                        content = chunk.get('content', '')
+                        content = str(chunk.get('content', ''))  # Convert content to string
                         chunk_type = chunk.get('type', 'message')
                         
                         # Skip empty chunks
@@ -639,7 +639,7 @@ def handle_user_input(user_input: str):
                         if chunk_type == 'message':
                             # Flush code buffer if exists
                             if code_buffer:
-                                code_text = ''.join(code_buffer)
+                                code_text = ''.join(str(item) for item in code_buffer)  # Convert each item to string
                                 if code_text.strip():
                                     message_buffer.append(f"\n```{current_chunk['language'] or 'python'}\n{code_text.strip()}\n```\n")
                                 code_buffer = []
@@ -652,7 +652,7 @@ def handle_user_input(user_input: str):
                             # Start new code block if needed
                             if current_chunk['type'] != 'code':
                                 if code_buffer:  # Flush previous code buffer
-                                    code_text = ''.join(code_buffer)
+                                    code_text = ''.join(str(item) for item in code_buffer)  # Convert each item to string
                                     if code_text.strip():
                                         message_buffer.append(f"\n```{current_chunk['language'] or 'python'}\n{code_text.strip()}\n```\n")
                                     code_buffer = []
@@ -667,9 +667,9 @@ def handle_user_input(user_input: str):
                         
                         # Update display with proper chunking
                         try:
-                            display_content = ''.join(str(item) for item in message_buffer)
+                            display_content = ''.join(str(item) for item in message_buffer)  # Convert each item to string
                             if code_buffer:  # Add current code buffer if exists
-                                code_text = ''.join(str(item) for item in code_buffer)
+                                code_text = ''.join(str(item) for item in code_buffer)  # Convert each item to string
                                 if code_text.strip():
                                     display_content += f"\n```{current_chunk['language'] or 'python'}\n{code_text.strip()}\n```"
                             
@@ -683,12 +683,12 @@ def handle_user_input(user_input: str):
                 try:
                     # Handle any remaining code buffer
                     if code_buffer:
-                        code_text = ''.join(code_buffer)
+                        code_text = ''.join(str(item) for item in code_buffer)  # Convert each item to string
                         if code_text.strip():
                             message_buffer.append(f"\n```{current_chunk['language'] or 'python'}\n{code_text.strip()}\n```\n")
                     
                     # Prepare final response
-                    final_response = ''.join(message_buffer)
+                    final_response = ''.join(str(item) for item in message_buffer)  # Convert each item to string
                     
                     # Create and store assistant message
                     assistant_message = ChatMessage(final_response, "text", "assistant")