bpo-30144: Import collections ABC from collections.abc rather than collections. (#1263)

1 files changed, 3 insertions, 3 deletions

diff --git a/Lib/weakref.py b/Lib/weakref.py
index 787e33a..1802f32 100644
--- a/Lib/weakref.py
+++ b/Lib/weakref.py
@@ -21,7 +21,7 @@ from _weakref import (
 
 from _weakrefset import WeakSet, _IterationGuard
 
-import collections  # Import after _weakref to avoid circular import.
+import collections.abc  # Import after _weakref to avoid circular import.
 import sys
 import itertools
 
@@ -87,7 +87,7 @@ class WeakMethod(ref):
     __hash__ = ref.__hash__
 
 
-class WeakValueDictionary(collections.MutableMapping):
+class WeakValueDictionary(collections.abc.MutableMapping):
     """Mapping class that references values weakly.
 
     Entries in the dictionary will be discarded when no strong
@@ -340,7 +340,7 @@ class KeyedRef(ref):
         super().__init__(ob, callback)
 
 
-class WeakKeyDictionary(collections.MutableMapping):
+class WeakKeyDictionary(collections.abc.MutableMapping):
     """ Mapping class that references keys weakly.
 
     Entries in the dictionary will be discarded when there is no