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bpo-46659: Deprecate locale.getdefaultlocale() #31206

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Merged
merged 1 commit into from
Feb 22, 2022
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bpo-46659: Deprecate locale.getdefaultlocale() #31206

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2 changes: 2 additions & 0 deletions Doc/library/locale.rst
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Expand Up @@ -301,6 +301,8 @@ The :mod:`locale` module defines the following exception and functions:
*language code* and *encoding* may be ``None`` if their values cannot be
determined.

.. deprecated:: 3.11 3.13


.. function:: getlocale(category=LC_CTYPE)

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6 changes: 6 additions & 0 deletions Doc/whatsnew/3.11.rst
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Expand Up @@ -475,6 +475,12 @@ Deprecated

(Contributed by Hugo van Kemenade in :issue:`45173`.)

* The :func:`locale.getdefaultlocale` function is deprecated and will be
removed in Python 3.13. Use :func:`locale.setlocale`,
:func:`locale.getpreferredencoding(False) <locale.getpreferredencoding>` and
:func:`locale.getlocale` functions instead.
(Contributed by Victor Stinner in :issue:`46659`.)


Removed
=======
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6 changes: 6 additions & 0 deletions Lib/locale.py
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Expand Up @@ -555,6 +555,12 @@ def getdefaultlocale(envvars=('LC_ALL', 'LC_CTYPE', 'LANG', 'LANGUAGE')):

"""

import warnings
warnings.warn(
"Use setlocale(), getpreferredencoding(False) and getlocale() instead",
DeprecationWarning, stacklevel=2
)

try:
# check if it's supported by the _locale module
import _locale
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3 changes: 2 additions & 1 deletion Lib/test/test_locale.py
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Expand Up @@ -518,7 +518,8 @@ def test_defaults_UTF8(self):

os.environ['LC_CTYPE'] = 'UTF-8'

self.assertEqual(locale.getdefaultlocale(), (None, 'UTF-8'))
with check_warnings(('', DeprecationWarning)):
self.assertEqual(locale.getdefaultlocale(), (None, 'UTF-8'))

finally:
for k in orig_env:
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4 changes: 4 additions & 0 deletions Misc/NEWS.d/next/Library/2022-02-06-17-57-45.bpo-46659.zTmkoQ.rst
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@@ -0,0 +1,4 @@
The :func:`locale.getdefaultlocale` function is deprecated and will be removed
in Python 3.13. Use :func:`locale.setlocale`,
:func:`locale.getpreferredencoding(False) <locale.getpreferredencoding>` and
:func:`locale.getlocale` functions instead. Patch by Victor Stinner.