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. just-an-observation-ly y'rs, Z. -- Moshe Zadka <moshez@math.huji.ac.il> http://www.oreilly.com/news/prescod_0300.html http://www.linux.org.il -- we put the penguin in .com