[issue43905] dataclasses.astuple does deepcopy on all fields

[Eric V. Smith]

Eric V. Smith <eric at trueblade.com> added the comment:

No, iteration is explicitly a non-goal of PEP 557. See the section on namedtuple for why: https://www.python.org/dev/peps/pep-0557/#why-not-just-use-namedtuple

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