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bpo-30152: Reduce the number of imports for argparse. (#1269)

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Serhiy Storchaka 2017-09-26 00:55:55 +03:00 • committed by GitHub
parent f1502d097c
commit 81108375d9
8 changed files with 59 additions and 49 deletions
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6
Lib/weakref.py
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@ -21,7 +21,7 @@ from _weakref import (
from _weakrefset import WeakSet, _IterationGuard
import collections.abc # 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.abc.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.abc.MutableMapping):
class WeakKeyDictionary(_collections_abc.MutableMapping):
""" Mapping class that references keys weakly.
Entries in the dictionary will be discarded when there is no