Log group multiplexing

I’d like to use tox parallel, but it outputs multiple tool logs in parallel to stderr. I’d like to be able to multiplex the log lines to multiple folding groups, eg tox could write the logs to a file or named pipe, or prefix each message with the group

Hi @graingert,

Do you use tox in github action workflow? Github supports to group log lines with below code:

echo "::group::my title"   
echo "::endgroup::"

Please check the link for more details:


thanks, as far as I can tell grouping doesn’t work with parallel output?

Hi @graingert,

Thanks for your reply!

How do you set the parallel output? Could you please share your repo or a sample repo?