文件操作 - log.py
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文件: /usr/lib/python3/dist-packages/traitlets/log.py
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"""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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