Update app.py

app.py

@@ -52,7 +52,22 @@ for message in chat_history:
     st.markdown(content)
 
 # Accept user input and attachment using chat input widget
-user_input, attachment = st.chat_input("Enter a message or a code snippet")
+# Get the value from st.chat_input
+value = st.chat_input("Enter a message or a code snippet")
+# Check if the value is a string or a file
+if isinstance(value, str):
+  # Assign the value to user_input
+  user_input = value
+  # Set attachment to None
+  attachment = None
+elif isinstance(value, st.uploaded_file_manager.UploadedFile):
+  # Assign the value to attachment
+  attachment = value
+  # Set user_input to None
+  user_input = None
+else:
+  # Raise an exception if the value is neither a string nor a file
+  raise ValueError("Invalid value from st.chat_input")
 
 if user_input or attachment:
   # Add user message to chat history