@staticmethod
  def IsFileAccessible(filename, normcase=os.path.normcase,
                       py27_optional=False):



    logical_filename = normcase(os.path.abspath(filename))







    result = FakeFile._availability_cache.get(logical_filename)
    if result is None:
      result = FakeFile._IsFileAccessibleNoCache(logical_filename,
                                                 normcase=normcase,
                                                 py27_optional=py27_optional)
      FakeFile._availability_cache[logical_filename] = result
    return result
Determines if a file's path is accessible.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver_import_hook.py/FakeFile.IsFileAccessible