> Okay, I've googled "leaky abstractions" (as was probably your intended > affect with your silence), read the famous essay, and still > don't know what you mean and how it applies to what I have described. > > Do you plan to justify your statement or emptily accuse people of violating > esoteric principles?
While I can't claim to know what the effbot thinks (the skull-socks-wearing-python-coder-mindlink-technology is yet to be developed), I think it's pretty clear what he is after here: Computers compute offsets into data zero-based. Some languages like pascal completely abstract that away from the user, but python doesn't. So if your colleague/boss/whatever insists on indices being one-based, this abstraction you introduced for her pretty fast leaks pretty badly. Consider this simple example: for offset, item in enumerate(some_list, start=1): if item.is_the_chosen_one(): chosen_one_offset = offset the_chosen_one = some_list[chosen_one_offset] And bang, its Judas not Petrus who gets the pearly gates inc. stock options. Diez -- http://mail.python.org/mailman/listinfo/python-list