On Apr 6, 9:25 am, Mark Dickinson <[EMAIL PROTECTED]> wrote: > On Apr 5, 6:19 pm, [EMAIL PROTECTED] wrote: > > > which is the best way to check if a string is an number or a char? > > could the 2nd example be very expensive timewise if i have to check a > > lot of strings? > > You might be interested in str.isdigit: > > >>> print str.isdigit.__doc__ > > S.isdigit() -> bool > > Return True if all characters in S are digits > and there is at least one character in S, False otherwise. >
This doesn't cater for negative integers. -- http://mail.python.org/mailman/listinfo/python-list
