On Thu, Mar 26, 2015 at 7:56 PM, Chris Angelico <ros...@gmail.com> wrote: >> On a more specific note, its the 1st line: >> >> class filter(object) >> >> which knocks me off. >> If a more restricted type from the ABC was shown which exactly captures all >> the iterator-specific stuff like __iter__, __next__ it would sure help (me) > > But there's no point in subclassing for everything. In this case, > filter doesn't subclass anything but object, so there's no value in > stating anything else. You want to know if it's iterable? Check for an > __iter__ method. Etcetera.
Also, filter is a builtin, while collections.abc.Iterable is in a library module written in Python, so there's a bootstrapping problem with having the one inherit from the other. -- https://mail.python.org/mailman/listinfo/python-list
