[issue36581] __dir__ on unittest.mock not safe for all spec types

[Dylan Semler]

Dylan Semler <dylan.semler at gmail.com> added the comment:

I agree docs only say "list of strings" and so this isn't a case where there's behavior that contrasts with the documentation. I merely ran into this issue in my project and found it difficult to get to the root of so wanted to fix it upstream. I made a patch and reported this bug only as a formality to accompany my patch.

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