bpo-38026: fix inspect.getattr_static (GH-15676)


It should avoid dynamic lookup including `isinstance`.

This is a regression caused by GH-5351.
(cherry picked from commit 8f9cc8771ffb8d0e21be287eaed42ae06087acca)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>
2 files changed