[Python-3000] path in py3K Re: [Python-checkins] r51624 (original) (raw)
[Python-3000] path in py3K Re: [Python-checkins] r51624 - in python/trunk/Lib: genericpath.py macpath.py ntpath.py os2emxpath.py posixpath.py test/test_genericpath.py
Jim Jewett jimjjewett at gmail.com
Sun Aug 27 04:42:02 CEST 2006
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In Py3K, is it still safe to assume that a list of paths will be (enough like) ordinary strings?
I ask because of the various Path object discussions; it wasn't clear that a Path object should be a sequence of (normalized unicode?) characters (rather than path components), that the path would always be normalized or absolute, or even that it would implement the LE (or LT?) comparison operator.
-jJ
On 8/26/06, jack.diederich <python-checkins at python.org> wrote:
Author: jack.diederich Date: Sat Aug 26 20:42:06 2006 New Revision: 51624
Added: python/trunk/Lib/genericpath.py
+# Return the longest prefix of all list elements. +def commonprefix(m): + "Given a list of pathnames, returns the longest common leading component" + if not m: return '' + s1 = min(m) + s2 = max(m) + n = min(len(s1), len(s2)) + for i in xrange(n): + if s1[i] != s2[i]: + return s1[:i] + return s1[:n]
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