Unexpected behavior when calling a script

[killme2008]

When calling a python script,there were some log looks strange:

022-09-08T02:45:40.549040Z  INFO rustpython_vm::frame: Exception raised: PyBaseException with cause: None
2022-09-08T02:45:40.563370Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.563434Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.566368Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.566423Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.575259Z  INFO rustpython_vm::frame: Exception raised: PyBaseException with cause: None
2022-09-08T02:45:40.578054Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.578102Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.583179Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:40.583235Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.818621Z  INFO rustpython_vm::frame: Exception raised: PyBaseException with cause: None
2022-09-08T02:45:52.831254Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.831346Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.833919Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.833969Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.843423Z  INFO rustpython_vm::frame: Exception raised: PyBaseException with cause: None
2022-09-08T02:45:52.846139Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.846197Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.851115Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object
2022-09-08T02:45:52.851171Z  WARN rustpython_vm::object::core: couldn't run __del__ method for object

And we can't exit the datanode process by CTRL + C.