PEP8 code style issues found by pycodestyle, ignoring "line to long: errors (IMHO it should be fine to set it to something less restrictive project-wide, like 100 or even 120).
Out of interest: What version of pycodestyle do you use? I currently seem to have version 2.4.0 here while I do see most of the issues, for example I don't see a message about the regex functions not using raw strings.
I'm also using pycodestyle 2.4.0. The error/warning was not about raw strings in regexps, rather illegal escape sequences, i.e.:
.\lnt\server\db\regression.py:58:20: W605 invalid escape sequence '\d'
I think using raw strings is better than using something like \\d.
Btw, I doubt that I can commit to llvm repo, so I need somebody to commit this for me. Thanks!