Dear Maintainer, I have the same issue. The patch from Kenichiro works for me.
> even this line of code is not included in mcomix itself.Oh? The file is placed in /usr/lib/python3/dist-packages/mcomix/__main__.py on my environment.
It seems to come from; https://sources.debian.org/src/mcomix/3.1.0-1/mcomix/__main__.py/ Thanks,
