[3.10] bpo-44962: Fix a race in WeakKeyDict, WeakValueDict and WeakSet when two threads attempt to commit the last pending removal (GH-27921)#28013

Merged

miss-islington merged 1 commit intopython:3.10from

miss-islington:backport-206b21e-3.10

Aug 28, 2021

Commits on Aug 28, 2021

bpo-44962: Fix a race in WeakKeyDict, WeakValueDict and WeakSet when two threads attempt to commit the last pending removal (GH-27921)

graingert
authored and
miss-islington
committed