New GitHub issue #118767 from JelleZijlstra:<br>

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See https://discuss.python.org/t/should-bool-notimplemented-become-an-error/51342 and #79893.
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<a href="https://github.com/python/cpython/issues/118767">View on GitHub</a>
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<p>Assignee: JelleZijlstra</p>