def delete(self):
    encoded_data = self.request.body
    data = json.loads(encoded_data)

    for instance in data:
      instance = InstanceInfo.get_by_id(instance['appid'] + instance['host'] + \
        str(instance['port']))
      instance.key.delete()

    self.response.out.write('delete completed successfully!')
Return False since threading is not supported.
dataset/ETHPy150Open AppScale/appscale/AppDashboard/dashboard.py/InstanceStats.delete--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/dist/py_imp.py/lock_held