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Jan. 10, 2016
8:02 p.m.
2016-01-10 18:57 GMT+01:00 Steven D'Aprano <steve@pearwood.info>:
Do all custom Mappings need to implement __version__?
I believe the answer to that is No, but the PEP probably should clarify that.
In the PEP, I wrote "The PEP is designed to implement guards on namespaces, only the dict type can be used for namespaces in practice. collections.UserDict is modified because it must mimicks dict. collections.Mapping is unchanged." https://www.python.org/dev/peps/pep-0509/#changes Is it enough? If no, what do you suggest to be more explicit? Victor