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patch.py
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patch.py
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import logging
_process_aware = False
def _patch_logger_class():
"""Make sure process name is recorded when loggers are used."""
from multiprocessing.process import current_process
logging._acquireLock()
try:
OldLoggerClass = logging.getLoggerClass()
if not getattr(OldLoggerClass, '_process_aware', False):
class ProcessAwareLogger(OldLoggerClass):
_process_aware = True
def makeRecord(self, *args, **kwds):
record = OldLoggerClass.makeRecord(self, *args, **kwds)
record.processName = current_process()._name
return record
logging.setLoggerClass(ProcessAwareLogger)
finally:
logging._releaseLock()
def ensure_process_aware_logger():
global _process_aware
if not _process_aware:
_patch_logger_class()
_process_aware = True