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−#!/usr/bin/env python
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−#
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−# Copyright 2007 Google Inc.
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−#
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−# Licensed under the Apache License, Version 2.0 (the "License");
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−# you may not use this file except in compliance with the License.
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−# You may obtain a copy of the License at
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−#
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−#     http://www.apache.org/licenses/LICENSE-2.0
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−#
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−# Unless required by applicable law or agreed to in writing, software
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−# distributed under the License is distributed on an "AS IS" BASIS,
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−# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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−# See the License for the specific language governing permissions and
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−# limitations under the License.
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−#
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−"""OS cross-platform compatibility tweaks.
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−
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−This module will, on import, change some parts of the running evironment so
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−that other modules do not need special handling when running on different
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−operating systems, such as Linux/Mac OSX/Windows.
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−
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−Some of these changes must be done before other modules are imported, so
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−always import this module first.
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−"""
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−
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−
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−import os
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−os.environ['TZ'] = 'UTC'
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−import time
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−if hasattr(time, 'tzset'):
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−  time.tzset()
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−
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−import __builtin__
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−
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−
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−if 'WindowsError' in __builtin__.__dict__:
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−  WindowsError = WindowsError
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−else:
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−  class WindowsError(Exception):
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−    """A fake Windows Error exception which should never be thrown."""
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−
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−
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−ERROR_PATH_NOT_FOUND = 3