def FakeReadlink(path):
  raise OSError(errno.EINVAL, "Invalid argument", path)
use ArcPy to check if geo-objects exist or not
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver_import_hook.py/FakeReadlink--crossover with--dataset/ETHPy150Open Esri/solutions-geoprocessing-toolbox/suitability/toolboxes/scripts/NAMDownload.py/checkArcPyExists