SF bug #44271: os.path.expanduser problem w/o HOME set. This is a Windows-specific glitch that's really due to that, e.g., ntpath.join("c:", "/abc") returned "/abc" instead of "c:/abc".  Made join smarter. Bugfix candidate.
SF bug #44271: os.path.expanduser problem w/o HOME set.
This is a Windows-specific glitch that's really due to that, e.g.,
ntpath.join("c:", "/abc") returned "/abc" instead of "c:/abc".  Made
join smarter.
Bugfix candidate.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator