Moshe Zadka wrote: > > On Wed, 14 Jun 2000, M.-A. Lemburg wrote: > > > > > >>> ''.isdigit() > > > > 1 > > > > >>> ''.isspace() > > > > 1 > > > > > > > > > > Good point, maybe. The __docs__ say: > > > > > > "S.isdigit() -> int\n\ > > > \n\ > > > Return 1 if there are only digit characters in S,\n\ > > > 0 otherwise."; > > > > > > static char isspace__doc__[] = > > > "S.isspace() -> int\n\ > > > \n\ > > > Return 1 if there are only whitespace characters in S,\n\ > > > 0 otherwise."; > > > > > > I am not an English language lawyer so I could see both interpretations from > > > the doc strings. I agree, that the result with a zero length string is > > > surprising. > > > > > > Hi All, > > > Which should it be? Sorry, if this has been covered. > > > > I guess it's a bug... a subtle one though, because in a > > certain sense both 1 and 0 are acceptable. But since > > '' is considered to be false, I think that returning 0 > > makes more sense. > > > > I'll fix this to return 0 for emtpy strings and Unicode objects. > > I just realized something: if you change the semantics to mean "number of > digits", you'll get the right answer for all 0- and 1- length strings > and unicode objects. Hmm, the .isXXX() tests should return 1/0 since they test properties rather than count characters. -- Marc-Andre Lemburg ______________________________________________________________________ Business: http://www.lemburg.com/ Python Pages: http://www.lemburg.com/python/
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