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From: Jason Friedman on 16 Jul 2010 12:58 $ python Python 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) [GCC 4.4.1] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> "x.vsd-dir".rstrip("-dir") 'x.vs' I expected 'x.vsd' as a return value.
From: Thomas Jollans on 16 Jul 2010 13:14 On 07/16/2010 06:58 PM, Jason Friedman wrote: > $ python > Python 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) > [GCC 4.4.1] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>>> "x.vsd-dir".rstrip("-dir") > 'x.vs' > > I expected 'x.vsd' as a return value. >>> "x-vsd-dir".rstrip("-dir") 'x-vs' >>> "x-vsd-dir".rstrip("123id-r456") 'x-vs' >>> "x-vsd-dir".rstrip("-di") 'x-vsd-dir' >>> "fooabc".rstrip("bca") 'foo' >>> http://docs.python.org/py3k/library/stdtypes.html#str.rstrip :: """ The chars argument is not a suffix; rather, all combinations of its values are stripped: """
From: Ken Watford on 16 Jul 2010 13:20 On Fri, Jul 16, 2010 at 12:58 PM, Jason Friedman <jason(a)powerpull.net> wrote: > $ python > Python 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) > [GCC 4.4.1] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>>> "x.vsd-dir".rstrip("-dir") > 'x.vs' > > I expected 'x.vsd' as a return value. > -- > http://mail.python.org/mailman/listinfo/python-list > rstrip strips a given set of characters, not a specific string. '-dir' contains d, so the trailing d is also stripped.
From: MRAB on 16 Jul 2010 13:27 Jason Friedman wrote: > $ python > Python 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) > [GCC 4.4.1] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>>> "x.vsd-dir".rstrip("-dir") > 'x.vs' > > I expected 'x.vsd' as a return value. ..strip, .lstrip and .rstrip treat their argument like a set of characters and remove any of those characters from the end(s) of the string. In your example it's removing any "-", "d", "i" or "r" from the right-hand end of "x.vsd-dir", leaving "x.vs", like this: result = "x.vsd-dir" characters = "-dir" while result and result[-1] in characters: result = result[ : -1]
From: Novocastrian_Nomad on 16 Jul 2010 13:55
On Jul 16, 10:58 am, Jason Friedman <ja...(a)powerpull.net> wrote: > $ python > Python 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) > [GCC 4.4.1] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>> "x.vsd-dir".rstrip("-dir") > > 'x.vs' > > I expected 'x.vsd' as a return value. One way to achieve the desired result: 'x.vsd-dir'.split('-')[0] |