app_handler.py

class AppHandler(object):
    @classmethod
    def create(cls, name, description):
        return CreateAppService(name, description).call()

    @classmethod
    def update(cls, app_id, name, description):
        app = AppFinder.get_from_id(app_id)
        return UpdateAppService(app, name, description).call()

    @classmethod
    def delete(cls, app_id):
        app = AppFinder.get_from_id(app_id)
        return DeleteAppService(app).call()

Any specific reason to use @classmethod here? Can we use @staticmethod also for these methods?