On 8 Mai, 20:46, Steven D'Aprano <st...@remove-this- cybersource.com.au> wrote:
> def get_leading_whitespace(s): > t = s.lstrip() > return s[:len(s)-len(t)] > > >>> c = get_leading_whitespace(a) > >>> assert c == leading_whitespace > > Unless your strings are very large, this is likely to be faster than any > other pure-Python solution you can come up with. Returning s[:-1 - len(t)] is faster. -- http://mail.python.org/mailman/listinfo/python-list