On Fri, 26 Jan 2007 21:33:47 -0800, eight02645999 wrote: > hi > can someone explain strip() for these : > [code] >>>> x='www.example.com' >>>> x.strip('cmowz.') > 'example' > [/code] > > when i did this: > [code] >>>> x = 'abcd,words.words' >>>> x.strip(',.') > 'abcd,words.words' > [/code] > > it does not strip off "," and "." .Why is this so? > thanks
Fascinating... It gets weirder: >>> x.strip('s') 'abcd,words.word' Why strip only the final s, not the earlier one? >>> x.strip('w') 'abcd,words.words' >>> x.strip('o') 'abcd,words.words' >>> x.strip('r') 'abcd,words.words' Strips nothing. >>> x.strip('ba') 'cd,words.words' Strips correctly. >>> x.strip('bwa') 'cd,words.words' Strips the a and b but not the w. >>> x.strip('bwas') 'cd,words.word' ...and only one of the S's. >>> y = "bwas" >>> y.strip('bwas') '' >>> y = "bwasxyz" >>> y.strip('bwas') 'xyz' And yet these work. You know, I'm starting to think there may be a bug in the strip method... either that or the documentation should say: strip(...) S.strip([chars]) -> string or unicode Return a copy of the string S with leading and trailing whitespace removed. If chars is given and not None, remove none, some or all characters in chars instead. If chars is unicode, S will be converted to unicode before stripping *wink* -- Steven. -- http://mail.python.org/mailman/listinfo/python-list