[Python-Dev] A wart which should have been repaired in 3.0? (original) (raw)
Steve Holden steve at holdenweb.com
Wed Dec 31 14:21:49 CET 2008
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Phillip J. Eby wrote:
At 09:30 PM 12/30/2008 -0500, rdmurray at bitdance.com wrote:
On Tue, 30 Dec 2008 at 17:51, Phillip J. Eby wrote:
At 02:32 PM 12/30/2008 -0800, Scott David Daniels wrote:
More trouble with the "just take the dirname":
paths = ['/a/b/c', '/a/b/d', '/a/b'] os.path.dirname(os.path.commonprefix([ os.path.normpath(p) for p in paths])) give '/a', not '/a/b'. ...because that's the correct answer. But not the answer that is wanted. So the challenge now is to write a single expression that will yield '/a/b' when passed the above paths list, and also produce '/a/b' when passed the following paths list: paths = ['/a/b/c', '/a/b/cd'] Change that to [os.path.normpath(p)+'/' for p in paths] and you've got yourself a winner. Or possibly [os.path.normpath(p)+os.path.sep for p in paths]?
regards Steve
Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/
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