Giampaolo Rodola' <g.rod...@gmail.com> added the comment:

> The docstring for shutil says: Utility functions for copying and 
> archiving files and directory trees. So it doesn't seem to fit at all.

Well... shutil should stand for "shell utilities" and it already contains stuff 
which is not strictly related to file/directory direct operations (see 
shutil.disk_usage and upcoming shutil.which).

But maybe you're right... I don't know...
My point is that a function which attempts different fallbacks (ask OS -> ask 
os.environ -> return (None, None) / raise exception) sounds more like an 
utility function rather than something belonging to os module, where you 
tipically see 1-to-1 interfaces for the underlying system functions.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue13609>
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