tox -p suppresses color output

[pbelskiy]

Hello!

Is it possible to print colorful error output when running tox in parallel? Same tox behavior on my previous and current version (3.23.1)

[jugmac00]

Hi @pbelskiy, I do not understand - I am on tox 3.23.1 and I see the failed runs in red color.

Could you please tell us in which version of tox you have problems and in which you had no problems?

Could you also please provide screenshots?

Thank you!

[pbelskiy]

@jugmac00 I meant no color when error in traceback output and ERROR INFO keyword highlighting etc

[jugmac00]

Thanks for clarifying!

single env

parallel mode

Interestingly, on the tox-rewrite branch for the upcoming tox4, there is no color by default for single envs...

And in parallel there are no tracebacks shown at all!

[gaborbernat]

Ah, yeah. So the issue isn't that tox suppresses the color output, rather than the tools in question don't generate colored output when not invoked with a tty attached. You can force them to do so by using the tty substitution, e.g. on tox itself and rewrite branch https://github.com/tox-dev/tox/blob/rewrite/tox.ini#L28

Now as far as not needing this workaround we're looking at issue #1773. This being a duplicate of that. I don't think we'd change it for tox 3.