Tools/scripts/pathfix.py does not find Python scripts that contain a '-' in their filename when working recursively.
This is caused by the regular expression used to detect whether a filename is a Python script:

r'^[a-zA-Z0-9_]+\.py$'

r'^[a-zA-Z0-9_-]+\.py$'

fixes this. I am not sure if you want to allow further characters in script names like spaces or other special characters. The pull request I will create will only fix the '-' issue.

New changeset 2b7dc40b2af6578181808ba73c1533fc114e55df by Victor Stinner (Ruediger Pluem) in branch 'master':
bpo-38347: find pathfix for Python scripts whose name contain a '-' (GH-16536)
https://github.com/python/cpython/commit/2b7dc40b2af6578181808ba73c1533fc114e55df

New changeset 73665b41470532f873315d5ae39906160192320d by Miss Islington (bot) in branch '3.8':
bpo-38347: find pathfix for Python scripts whose name contain a '-' (GH-16536)
https://github.com/python/cpython/commit/73665b41470532f873315d5ae39906160192320d

New changeset ed189ce49423f15ba8774ff174c15d03d12bc807 by Victor Stinner in branch '3.7':
bpo-38347: find pathfix for Python scripts whose name contain a '-' (GH-16536) (GH-16719)
https://github.com/python/cpython/commit/ed189ce49423f15ba8774ff174c15d03d12bc807

Thanks Ruediger Pluem: I merged your change into master and backported to 3.8 and 3.7. For the 3.7 backport, I skipped tests.

Welcome Victor Stinner. Any chance to get it also backported to 3.6 as I guess this would increase the chance to see it in RedHat 8 where I hit the issue?

> Welcome Victor Stinner. Any chance to get it also backported to 3.6 as I guess this would increase the chance to see it in RedHat 8 where I hit the issue?

Python 3.6 doesn't accept bugfixes upstream.

If you are a Red Hat customer, you can contact the support to request a backport. Or you can copy the file from the master branch :-)

Thanks for the information. I opened a support request.

Note that the pathfix comment says:

# Directories are searched recursively for files whose name looks
# like a python module.

Files with a dash are *not* Python modules, since they can't be imported. Should the comment (which is the only documentation for pathfix, AFAIK) be updated to say it looks for the .py suffix?