[3.12] gh-107810: Improve DeprecationWarning for metaclasses with custom tp_new (GH-107834) (#107864)

gh-107810: Improve DeprecationWarning for metaclasses with custom tp_new (GH-107834)

(cherry picked from commit 16dcce21768ba381996a88ac8c255bf1490b3680)

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>

Miss Islington (bot) committed 2y ago

431ce239d2a906ec4d9a27a83549258d7cef3701

Parent: 585b4cc

Committed by GitHub <noreply@github.com> on 8/11/2023, 2:12:50 PM