[issue23401] Add pickle support of Mapping views

[Raymond Hettinger]

Raymond Hettinger added the comment:

Guido, is it your intention that the ABCs grow pickle support?  

I presume if this were implemented that it would become a requirement for all classes (and their subclasses) that purport to be mappings.  I thought that you had designed to the ABCs to stay focused only on the essential characteristics of mappings.

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assignee:  -> gvanrossum
nosy: +gvanrossum

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