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bpo-40937: Do not expose abstract collection classes in the collections module #20774

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5 changes: 0 additions & 5 deletions Doc/library/collections.rst
Original file line number Diff line number Diff line change
Expand Up @@ -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
-------------------------
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16 changes: 0 additions & 16 deletions Lib/collections/__init__.py
Original file line number Diff line number Diff line change
Expand Up @@ -52,22 +52,6 @@
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
################################################################################
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
The abstract base classes in :mod:`collections.abc` no longer are exposed in
the regular :mod:`collections` module.