Richie Hindle <[EMAIL PROTECTED]> writes: > [Fredrik] >> so re.sub("([_.])\\1+", "\\1", newname) replaces runs consisting >> of either a . or an _ followed by one or more copies of itself, with >> a single instance of itself. > > ...and this: > >>>> def isprime(n): >>>> return n > 1 and not re.match(r'(xx+)\1+$', 'x'*n) > > finds prime numbers.
So, who will post a 'Pior' (Python in one regex)? Thomas -- http://mail.python.org/mailman/listinfo/python-list