I've noticed that almost every image on here has these lines defined:

# http://bugs.python.org/issue19846
# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
ENV LANG C.UTF-8

It looks like the linked issue was closed back in 2017 and it might not be relevant anymore. I'm curious: are there any particular reasons to keep this around?

EDIT: Just saw that there was a failed attempt to remove LANG before — however, the cause of those errors seems unclear and we're still linking to an issue that has been closed/resolved for several years.