[issue10395] new os.path function to extract common prefix based on path components

[Paddy McCarthy]

Paddy McCarthy added the comment:

Can we now:
 1. Move os.path.commonprefix to str.commonprefix or string.commonprefix
 2. Deprecate the use of os.path.commonprefix
 3. Add os.path.commonpath
 4. Update the documentation.

This seems to have lingered for too long and yet people have been willing to do the work it seems (from 1999).

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nosy: +Paddy McCarthy

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<http://bugs.python.org/issue10395>
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