I agree the docstring is a bit confusing and could be clarified as to what's happening
> Can someone explain me this? And in which way i can count all > the occurrence of a substring in a master string? (yes all > occurrence reusing already counter character if needed) You should be able to use something like s = "a_a_a_a_" count = len([i for i in range(len(s)) if s.startswith("_a_", i)]) which will count the way you wanted, rather than the currently existing count() behavior. -tkc -- http://mail.python.org/mailman/listinfo/python-list