I totally understand the performance issue that an hypothetical "istail" would bring, even if I think it would just be the programmer's responsibility not to use it when it's not certain that an end can be detected. But I don't see why *adding* something like "ishead" would be so bad (at worse by using a boolean somewhere as you mentioned).
Anyway I was just asking if there is something better than enumerate. So the answer is no? The fact that I have to create a tuple with an incrementing integer for something as simple as checking that I'm at the head just sounds awfully unpythonic to me. -- http://mail.python.org/mailman/listinfo/python-list
