Daniel Stutzbach <[email protected]> added the comment:
Re-opening and re-titling the issue to that effect.
Proposed syntax and usage:
# in Lib/abc.py
class ABCMeta(type):
# ...
def has_methods(cls, subclass):
"Returns True iff subclass implements the appropriate methods"
# ...
Usage within the unit tests:
# In Lib/test/test_collections.py
def test_methods(self):
self.assertTrue(Sequence.has_methods(range))
self.assertTrue(MutableSet.has_methods(set))
# ... and many more
----------
assignee: -> stutzbach
components: +Tests
resolution: rejected -> accepted
stage: -> needs patch
status: closed -> open
title: ABCMeta.register should verify that methods are present -> Add
ABCMeta.has_methods and tests that use it
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Python tracker <[email protected]>
<http://bugs.python.org/issue9731>
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