PEP 3119 has some "Open issues", three of which I list below. These have (I assume) probably been resolved but it is hard to know what search terms to use to find them in this mailing list. It would be useful to record the decisions in the PEP, or at least resolve them if they are still open issues.
(in "One Trick Ponies") Open issues: Conceivably, instead of using the ABCMeta metaclass, these classes could override __instancecheck__ and __subclasscheck__ to check for the presence of the applicable special method (in Sequence) Open issues: Other candidate methods, which can all have default concrete implementations that only depend on __len__ and __getitem__ with an integer argument: __reversed__, index, count, __add__, __mul__. (in Strings) Open issues: define the base interfaces for these so alternative implementations and subclasses know what they are in for. This may be the subject of a new PEP or PEPs (PEP 358 should be co-opted for the bytes type). _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
