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bpo-37324: Remove ABC aliases from collections (GH-23754)

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Remove deprecated aliases to Abstract Base Classes from the
collections module.
This commit is contained in:
Hugo van Kemenade 2021-01-13 01:16:37 +02:00 committed by GitHub
parent 6dfd1734f5
commit c47c78b878
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4 changed files with 6 additions and 21 deletions
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5
Doc/library/collections.rst
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@ -33,11 +33,6 @@ Python's general purpose built-in containers, :class:`dict`, :class:`list`,
:class:`UserString` wrapper around string objects for easier string subclassing
===================== ====================================================================
.. deprecated-removed:: 3.3 3.10
Moved :ref:`collections-abstract-base-classes` to the :mod:`collections.abc` module.
For backwards compatibility, they continue to be visible in this module through
Python 3.9.
:class:`ChainMap` objects
-------------------------

4
Doc/whatsnew/3.10.rst
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@ -550,6 +550,10 @@ Removed
now due to the _warnings module was converted to a builtin module in 2.6.
(Contributed by Hai Shi in :issue:`42599`.)
* Remove deprecated aliases to :ref:`collections-abstract-base-classes` from
the :mod:`collections` module.
(Contributed by Victor Stinner in :issue:`37324`.)
Porting to Python 3.10
======================

16
Lib/collections/__init__.py
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@ -51,22 +51,6 @@ except ImportError:
pass
def __getattr__(name):
# For backwards compatibility, continue to make the collections ABCs
# through Python 3.6 available through the collections module.
# Note, no new collections ABCs were added in Python 3.7
if name in _collections_abc.__all__:
obj = getattr(_collections_abc, name)
import warnings
warnings.warn("Using or importing the ABCs from 'collections' instead "
"of from 'collections.abc' is deprecated since Python 3.3, "
"and in 3.10 it will stop working",
DeprecationWarning, stacklevel=2)
globals()[name] = obj
return obj
raise AttributeError(f'module {__name__!r} has no attribute {name!r}')
################################################################################
### OrderedDict
################################################################################

2
Misc/NEWS.d/next/Core and Builtins/2020-12-12-20-09-12.bpo-37324.jB-9_U.rst Normal file
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@ -0,0 +1,2 @@
Remove deprecated aliases to :ref:`collections-abstract-base-classes` from
the :mod:`collections` module.