Command "chainlit run" doesn't start my python application

Question

In the folder App, I have a file "app.py" with the below code (from https://docs.chainlit.io/get-started/pure-python):

import chainlit as cl
from chainlit import user_session
@cl.on_message
async def main(message: cl.Message):
 # Your custom logic goes here...
 # Send a response back to the user
 await cl.Message(
 content=f"Received: {message.content}",
 ).send()

I'm trying to run this file in a terminal (macos Sonoma, zsh) with command "chainlit -w run app.py" and I'm getting the below error:

jarkow@MacBook-Air-Jarkow-2 App % chainlit run app.py -w

Usage: chainlit run [OPTIONS] TARGET Try 'chainlit run --help' for help.

Error: Invalid value: File does not exist: chainlit_basics.py

I installed the chainlit python package successfully and the command "chainlit hello" works well.

• Bill Horvath: Try python -m chainlit run app.py
• Asef Hossini: In my case, I had to use python3 ...