/usr/lib/python3/dist-packages/traitlets/log.py is in python3-traitlets 4.3.2-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | """Grab the global logger instance."""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.
import logging
_logger = None
def get_logger():
"""Grab the global logger instance.
If a global Application is instantiated, grab its logger.
Otherwise, grab the root logger.
"""
global _logger
if _logger is None:
from .config import Application
if Application.initialized():
_logger = Application.instance().log
else:
_logger = logging.getLogger('traitlets')
# Add a NullHandler to silence warnings about not being
# initialized, per best practice for libraries.
_logger.addHandler(logging.NullHandler())
return _logger
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