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Title: bpo-43224: Implement pickling of TypeVarTuples by mrahtz · Pull Request #32119 · python/cpython · GitHub

Open Graph Title: bpo-43224: Implement pickling of TypeVarTuples by mrahtz · Pull Request #32119 · python/cpython

X Title: bpo-43224: Implement pickling of TypeVarTuples by mrahtz · Pull Request #32119 · python/cpython

Description: Guess who learned a whole bunch about how pickling works :) Notes: I was a bit horrified to realise that the class I'd renamed to _BoundVarianceMixin also contains a key ingredient for pickling of things that use it! I've refactored its __reduce__ into a separate mixin for clarity. I'm not entirely sure whether these tests make sense - is assertEqual a reasonable way of testing this functionality? Am I correct in thinking we do need to test both assertEqual and assertIs for TypeVarTuples and unpacked TypeVarTuples? This PR doesn't include implementation of pickling support for unpacked native tuple; I'll do that in a future PR. (And I guess we'll also need to add tests for copy?) https://bugs.python.org/issue43224

Open Graph Description: Guess who learned a whole bunch about how pickling works :) Notes: I was a bit horrified to realise that the class I'd renamed to _BoundVarianceMixin also contains a key ingredient for picklin...

X Description: Guess who learned a whole bunch about how pickling works :) Notes: I was a bit horrified to realise that the class I'd renamed to _BoundVarianceMixin also contains a key ingredient for pic...

Opengraph URL: https://github.com/python/cpython/pull/32119

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