New submission from Kalle Rutanen:
On Windows, long-UNC paths are needed to inspect and modify paths with more
than 260 characters. The os.path.split() function behaves incorrectly in the
presence of a long-UNC prefix //?/ or \\?\. Consider iterating d =
os.path.split(d)[0] with d = '//?/e:/python-test/dir'. Then the values of d are
as follows:
'//?/e:/python-test/dir'
'//?/e:/python-test'
'//?/e:'
'//?'
'//'
The two last splits are the incorrect ones, where the splitting should end at
'//?/e:'.
One consequence of this is that os.makedirs(d) crashes, because it attempts to
run os.mkdir('//') at the bottom of its recursion. The same thing happens when
replacing all / with \\ in the above.
----------
components: Library (Lib)
messages: 169990
nosy: kaba2
priority: normal
severity: normal
status: open
title: os.path.split() and long UNC names
type: crash
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue15880>
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