On Tue, Jul 24, 2012 at 5:47 PM, Ulrich Eckhardt <ulrich.eckha...@dominolaser.com> wrote: > There is one model that has helped me much understanding how Python ticks > and that is the model of name tags. The code "a = 1" creates an integer with > value 1 and attaches a tag with "a" written on it using a small piece of > rope.
A double strand of rope, I think. If it were one strand, we'd write "a - 1". :) > [0] Note that in almost all cases, when referring to a tag, Python > implicitly operates on the object attached to it. One case (the only one?) > where it doesn't is the "del" statement. I'd say that del is more closely related to assignment than anything else. You can go "a = None" to mark that a now points to nothing, or you can "del a" to de-rope a altogether. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
