Python 3.11 complains about invalid escape sequence in test-suite/tools/parsers/parse_wpout.py

[merkys]

Multiple SyntaxWarnings are thrown from test-suite/tools/parsers/parse_wpout.py when running tests with Python 3.11, for example:

test-suite/tools/parsers/parse_wpout.py:16:
SyntaxWarning: invalid escape sequence '\s'
near_neigh_re = re.compile("^\s*\|\s+(\d+)\s+([\d\.]+)\s*(\d+)\s*")

[jryates]

I have seen this issue before. I think the issue is using back-slashes for something that isn't an escape sequence. In older version of python this generated a depreciation note, but in newer versions it gives a Syntax warning. One fix is to pass a raw string - e.g. change
wildcards = re.compile('.*(\*|\?|\[.*\]).*')
to
wildcards = re.compile(r'.*(\*|\?|\[.*\]).*')
I'm not very confident with python, so I'll consult before proposing a PR.

[merkys]

@jryates did you mean adding r before the opening single quote (both your code lines are identical)? I have seen this suggestion in many other places and it seems to work.

[jryates]

@merkys - I did. The current script does not have the r. I have corrected my earlier comment.

[jryates]

Fixed by #531

[merkys]

Thanks for fixing this!