> So here's a different approach, which I think does meet the spec: > > from itertools import tee > def allwords2(alphabet="abcd", maxlen = 4): > def wordgen(): > for char in alphabet: > yield char > for partial in allwordstee[1]: > if len(partial) == maxlen: > raise StopIteration > for char in alphabet: > yield partial+char > #tee creates two copies of the iterator: > # one is returned to the caller > # the other is fed back to the generator > allwordstee = tee(wordgen()) > return allwordstee[0]
Very neat. I never knew about tee. -- http://mail.python.org/mailman/listinfo/python-list
