'NoneType' object has no attribute 'body'

[Karam]

Hey guys, how are you?
I was working on a Streamlit app, and everything worked perfectly. After updating the code, I have stopped the server and rerun it, but now I am getting the following error:

Script execution error 'NoneType' object has no attribute 'body'

I don’t think the error is related to my specific app since it appears even when I run streamlit hello, and there is no traceback.

Thanks in advance.

[mathcatsand]

Please can you share your code and a more complete error message that identifies the line of code throwing the error?

[Karam]

The error is occurring even in streamlit hello demo app, but to be sure I have tried this:

import streamlit as st
st.write("Hello, World!")

The most confusing part is that there is no error message or traceback for certain line of code.

[Karam]

Uninstalling and reinstalling python solved the problem,
Thanks.