python/google/appengine/tools/os_compat.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2007 Google Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16 #
  17
  18
  19
  20 """OS cross-platform compatibility tweaks.
  21
  22 This module will, on import, change some parts of the running evironment so
  23 that other modules do not need special handling when running on different
  24 operating systems, such as Linux/Mac OSX/Windows.
  25
  26 Some of these changes must be done before other modules are imported, so
  27 always import this module first.
  28 """
  29
  30
  31
  32
  33
  34
  35
  36 import os
  37 os.environ['TZ'] = 'UTC'
  38 import time
  39 if hasattr(time, 'tzset'):
  40   time.tzset()
  41
  42 import __builtin__
  43
  44
  45
  46
  47
  48
  49 if 'WindowsError' in __builtin__.__dict__:
  50   WindowsError = WindowsError
  51 else:
  52   class WindowsError(Exception):
  53     """A fake Windows Error exception which should never be thrown."""
  54
  55
  56
  57
  58 ERROR_PATH_NOT_FOUND = 3
  59 ERROR_ACCESS_DENIED = 5
  60 ERROR_SHARING_VIOLATION = 32
  61 ERROR_ALREADY_EXISTS = 183
  62 WSAECONNABORTED = 10053