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# The MIT License (MIT)
#
# Copyright (C) 2016 - Antoine Busque <abusque@efficios.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import os
import time
class TimezoneUtils():
def __init__(self):
self.original_tz = None
def set_up_timezone(self):
# Make sure that the local timezone as seen by the time module
# is the same regardless of where the test is actually
# run. US/Eastern was picked arbitrarily.
self.original_tz = os.environ.get('TZ')
os.environ['TZ'] = 'US/Eastern'
try:
time.tzset()
except AttributeError:
print('Warning: time.tzset() is unavailable on Windows.'
'This may cause test failures.')
def tear_down_timezone(self):
# Restore the original value of TZ if any, else delete it from
# the environment variables.
if self.original_tz:
os.environ['TZ'] = self.original_tz
else:
del os.environ['TZ']
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