python Publish/Subscribe

I followed the above tutorial.
The logs are printed in the terminal.

python receive_logs.py

But logs are not saved to logs_from_rabbit.log, (The file is created but it is empty)

python receive_logs.py > logs_from_rabbit.log

Yes, I am running emit_log in each case.

python emit_log.py

Running this on window 10.
Successfully able to follow earlier tutorials.