On Thu, Jan 14, 2010 at 8:14 AM, Iain King <iaink...@gmail.com> wrote: > On Jan 14, 3:52 pm, chandra <chyav...@gmail.com> wrote: >> Folks, >> >> I am new to Python and could not find a function along the lines of >> string.ishex in Python. There is however, a string.hexdigits constant >> in the string module. I thought I would enhance the existing modlue >> but am unsure how I should go about it. Specifically, I have attempted >> this much: >> ---cut--- >> #! /usr/bin/python >> # -*- coding: utf-8 -*- >> >> import string >> >> def ishex(string): >> ishex = False >> for i in string: >> if i in string.hexdigits: >> ishex = True >> else: >> ishex = False >> break >> return ishex >> ---cut--- >> >> Can someone help me get further along please? >> >> Thanks. > > better would be: > def ishex(s): > for c in s: > if c not in string.hexdigits: > return False > return True
Even more succinctly: def ishex(s): return all(c in string.hexdigits for c in s) Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list