Sydney Pemberton <spember...@auntbertha.com> added the comment:
If you look at the Jupyter notebook it should be fairly clear but to
summarize here is the issue:
class collections.abc.Container
class collections.abc.Hashable
class collections.abc.Sized
class collections.abc.Callable
ABCs for classes that provide respectively the
methods __contains__(), __hash__(), __len__(), and __call__().
This should become
class collections.abc.Container
ABC for classes that provide the method __contains__().
class collections.abc.Hashable
ABC for classes that provide the method __hash__().
class collections.abc.Sized
ABC for classes that provide the method __len()__.
class collections.abc.Callable
ABC for classes that provide the method __call__().
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40994>
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