1

may,use like this

2

dir1:
    file1.py
dir2:
    file2.py

3

file2.py:

import file1

4

python dir2/file2.py

you will got: ERROR,ERROR,ERROR ...

5

file2.py

if __name__ == '__main__':
    import smart_append_path
    smart_append_path.append_top1(__file__)