app.py

import gradio as gr

def respond(message, chat_history):
    # Append the user message to the chat history
    chat_history.append({"role": "user", "content": message})
    # Echo back the user message as the assistant's response
    chat_history.append({"role": "assistant", "content": message})
    return "", chat_history  # Return an empty string for the input box and the updated chat history

with gr.Blocks() as demo:
    chatbot = gr.Chatbot(type="messages")
    msg = gr.Textbox(label="User Input")
    # Set up the event listener for the user's message submission
    msg.submit(respond, [msg, chatbot], [msg, chatbot])

# Launch the Gradio app
if __name__ == "__main__":
    demo.launch(show_error=True)