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GH-113421: Fix multiprocessing logger #113423

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Merged
serhiy-storchaka merged 8 commits into from
Dec 24, 2023
Merged

GH-113421: Fix multiprocessing logger #113423

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772a742
Fix multiprocessing logger
xu-song Dec 23, 2023
0c71144
add news entry
xu-song Dec 23, 2023
493414b
Add format unittest for multiprocessing logger
xu-song Dec 23, 2023
5313957
Initialize handler with io.StringIO()
xu-song Dec 23, 2023
f42181a
Add assert; Remove handler after test
xu-song Dec 24, 2023
9705a0b
Add try finnaly block; Restore logger level
xu-song Dec 24, 2023
04509a7
remove unused import
xu-song Dec 24, 2023
a49b399
Simplify unittest
xu-song Dec 24, 2023
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8 changes: 4 additions & 4 deletions Lib/multiprocessing/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,19 +43,19 @@

def sub_debug(msg, *args):
if _logger:
_logger.log(SUBDEBUG, msg, *args)
_logger.log(SUBDEBUG, msg, *args, stacklevel=2)

def debug(msg, *args):
if _logger:
_logger.log(DEBUG, msg, *args)
_logger.log(DEBUG, msg, *args, stacklevel=2)

def info(msg, *args):
if _logger:
_logger.log(INFO, msg, *args)
_logger.log(INFO, msg, *args, stacklevel=2)

def sub_warning(msg, *args):
if _logger:
_logger.log(SUBWARNING, msg, *args)
_logger.log(SUBWARNING, msg, *args, stacklevel=2)

def get_logger():
'''
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12 changes: 12 additions & 0 deletions Lib/test/_test_multiprocessing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4724,6 +4724,18 @@ def test_level(self):
root_logger.setLevel(root_level)
logger.setLevel(level=LOG_LEVEL)

def test_format(self):
logger = multiprocessing.get_logger()
logger.setLevel(util.DEBUG)
handler = logging.StreamHandler()
logging_format = '[%(levelname)s] [%(processName)s] [%(filename)s:%(lineno)d:%(funcName)s] %(message)s'
handler.setFormatter(logging.Formatter(logging_format))
logger.addHandler(handler)
logger.info('print info')
logger.debug('print debug')
pool_in_process()
logger.setLevel(LOG_LEVEL)


# class _TestLoggingProcessName(BaseTestCase):
#
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2023-12-23-16-10-07.gh-issue-113421.w7vs08.rst
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@@ -0,0 +1 @@
Fix multiprocessing logger for ``%(filename)s``.