import packages which i writed failed

[weidongzhou1994]

when I run the python file in vscode, I encounter a problem: ModuleNotFoundError, but when running the same file in pycharm or add the above codes to my python file， it haves no problem, how can I solve this problem:

import os, sys

sys.path.append(os.getcwd())

[brettcannon]

Where is the location of your phaethon package relative to your unit_test.py file?