def __init__(self, path):
        path_parts = path.split(':')
        if len(path_parts) is 1:
            self.model_name = 'default'
            self.attribute = path_parts[0]
        else:
            self.model_name = path_parts[0]
            self.attribute = path_parts[1]
dataset/ETHPy150Open openstack/fuel-web/nailgun/nailgun/expression/objects.py/ModelPath.__init__/operator `==` -> `is`