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patchlogging.py
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patchlogging.py
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# Copyright (C) 2020 Simon Biggs
# Copyright 2001-2017 by Vinay Sajip. All Rights Reserved.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted,
# provided that the above copyright notice appear in all copies and that
# both that copyright notice and this permission notice appear in
# supporting documentation, and that the name of Vinay Sajip
# not be used in advertising or publicity pertaining to distribution
# of the software without specific, written prior permission.
# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# Code vendored and modified from:
# https://github.com/python/cpython/blob/a667e1c66a/Lib/logging/__init__.py#L1957-L1961
import logging
import sys
from pymedphys import _config
_patch_applied = False
_basicConfig = logging.basicConfig
def apply_logging_patch():
if sys.version_info.major > 3 or (
sys.version_info.major == 3 and sys.version_info.minor >= 8
):
return
global _patch_applied # pylint: disable = global-statement
if not _config.is_cli:
raise ValueError(
"This patch globally adjusts the logging module. This patch is "
"not to be used within pymedphys while it is in library mode "
"as monkey patches on libraries/modules external to pymedphys "
"can be exceptionally confusing to a library user. "
"This is only to be used when pymedphys is being called via "
"the pymedphys CLI."
)
if _patch_applied:
return
def basicConfig(**kwargs):
force = kwargs.pop("force", False)
if force:
for h in logging.root.handlers[:]: # pylint: disable = no-member
logging.root.removeHandler(h) # pylint: disable = no-member
h.close()
_basicConfig(**kwargs)
logging.basicConfig = basicConfig
_patch_applied = True