ModuleNotFoundError: No module named 'tools.data_converter'

[hitbuyi]

When I run command to create data, the error happened

(pt110) hitbuyi@hitbuyi-Dell-G15-5511:~/PycharmProjects/pytorch_project/BEVFormer$ python tools/create_data.py nuscenes --root-path ./data/nuscenes --out-dir ./data/nuscenes --extra-tag nuscenes --version v1.0 --canbus ./data
Traceback (most recent call last):
  File "tools/create_data.py", line 10, in <module>
    from data_converter import indoor_converter as indoor
  File "/home/hitbuyi/PycharmProjects/pytorch_project/BEVFormer/tools/data_converter/indoor_converter.py", line 7, in <module>
    from tools.data_converter.s3dis_data_utils import S3DISData, S3DISSegData
ModuleNotFoundError: No module named 'tools.data_converter'

my files' hierarchy as below

What caused this problem and how to solve it ?

[Aurora-Legend]

export PYTHONPATH=./

[lix19937]

see #241 (comment)