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bpo-6689: os.path.commonpath raises ValueError for different drives isn't documented (GH-14045)

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It would raise ValueError("Paths don't have the same drive") if the paths on different drivers, which is not documented.


os.path.commonpath raises ValueError when the *paths* are in different drivers, but it is not documented.
Update the document according @Windsooon 's suggestion.
It actually raise ValueError according line 355 of [test of path](https://github.com/python/cpython/blob/master/Lib/test/test_ntpath.py) 


https://bugs.python.org/issue6689
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Makdon 2019-06-13 21:59:49 +08:00 • committed by Miss Islington (bot)
parent 6d22cc8e90
commit 95492032c4
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Doc/library/os.path.rst
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@ -87,9 +87,10 @@ the :mod:`glob` module.)
.. function:: commonpath(paths)
Return the longest common sub-path of each pathname in the sequence
*paths*. Raise :exc:`ValueError` if *paths* contains both absolute and relative
pathnames, or if *paths* is empty. Unlike :func:`commonprefix`, this
returns a valid path.
*paths*. Raise :exc:`ValueError` if *paths* contain both absolute
and relative pathnames, the *paths* are on the different drives or
if *paths* is empty. Unlike :func:`commonprefix`, this returns a
valid path.
.. availability:: Unix, Windows.