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gh-105376: Remove logging.Logger.warn() method by vstinner · Pull Request #105377 · python/cpython · GitHub

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8 changes: 4 additions & 4 deletions Doc/library/logging.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -275,6 +275,10 @@ is the module's name in the Python package namespace.
.. versionchanged:: 3.8
The *stacklevel* parameter was added.

.. versionchanged:: 3.13
Remove the undocumented ``warn()`` method which was an alias to the
:meth:`warning` method.


.. method:: Logger.info(msg, *args, **kwargs)

Expand All @@ -287,10 +291,6 @@ is the module's name in the Python package namespace.
Logs a message with level :const:`WARNING` on this logger. The arguments are
interpreted as for :meth:`debug`.

.. note:: There is an obsolete method ``warn`` which is functionally
identical to ``warning``. As ``warn`` is deprecated, please do not use
it - use ``warning`` instead.

.. method:: Logger.error(msg, *args, **kwargs)

Logs a message with level :const:`ERROR` on this logger. The arguments are
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6 changes: 6 additions & 0 deletions Doc/whatsnew/3.13.rst
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Expand Up @@ -310,6 +310,12 @@ Removed
use ``locale.setlocale(locale.LC_ALL, "")`` instead.
(Contributed by Victor Stinner in :gh:`104783`.)

* Remove the undocumented and untested ``logging.Logger.warn()`` method,
deprecated since Python 3.3, which was an alias to the
:meth:`logging.Logger.warning` method: use the :meth:`logging.Logger.warning`
method instead.
(Contributed by Victor Stinner in :gh:`105376`.)


Porting to Python 3.13
======================
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5 changes: 0 additions & 5 deletions Lib/logging/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1550,11 +1550,6 @@ def warning(self, msg, *args, **kwargs):
if self.isEnabledFor(WARNING):
self._log(WARNING, msg, args, **kwargs)

def warn(self, msg, *args, **kwargs):
warnings.warn("The 'warn' method is deprecated, "
"use 'warning' instead", DeprecationWarning, 2)
self.warning(msg, *args, **kwargs)

def error(self, msg, *args, **kwargs):
"""
Log 'msg % args' with severity 'ERROR'.
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
Remove the undocumented and untested ``logging.Logger.warn()`` method,
deprecated since Python 3.3, which was an alias to the
:meth:`logging.Logger.warning` method: use the :meth:`logging.Logger.warning`
method instead. Patch by Victor Stinner.

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