def _setup_environment(environ):
    import platform
    # Cygwin requires some special voodoo to set the environment variables
    # properly so that Oracle will see them.
    if platform.system().upper().startswith('CYGWIN'):
        try:
            import ctypes
        except __HOLE__ as e:
            from django.core.exceptions import ImproperlyConfigured
            raise ImproperlyConfigured("Error loading ctypes: %s; "
                                       "the Oracle backend requires ctypes to "
                                       "operate correctly under Cygwin." % e)
        kernel32 = ctypes.CDLL('kernel32')
        for name, value in environ:
            kernel32.SetEnvironmentVariableA(name, value)
    else:
        import os
        os.environ.update(environ)
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/backends/oracle/base.py/_setup_environment