docker build -t mmdetection3d docker/

Step 11/19 : RUN pip install mmseg
 ---> Running in 798c6d89b234
Collecting mmseg
  Downloading mmseg-1.3.0.tar.gz (817 kB)
    ERROR: Command errored out with exit status 1:
     command: /opt/conda/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-ofv4t21p/mmseg/setup.py'"'"'; __file__='"'"'/tmp/pip-install-ofv4t21p/mmseg/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-ofv4t21p/mmseg/pip-egg-info
         cwd: /tmp/pip-install-ofv4t21p/mmseg/
    Complete output (5 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-ofv4t21p/mmseg/setup.py", line 6, in <module>
        reload(sys)
    NameError: name 'reload' is not defined
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
The command '/bin/sh -c pip install mmseg' returned a non-zero code: 1

# RUN pip install mmseg

docker run --gpus all --shm-size=8g -it -v /bigdata/:/mmdetection3d/data mmdetection3d

root@bb54c2e6f3dd:/mmdetection3d# python demo/pcd_demo.py demo/data/kitti/kitti_000008.bin configs/second/hv_second_secfpn_6x8_80e_kitti-3d-car.py checkpoints/hv_second_secfpn_6x8_80e_kitti-3d-car_20200620_230238-393f000c.pth
Traceback (most recent call last):
  File "demo/pcd_demo.py", line 3, in <module>
    from mmdet3d.apis import inference_detector, init_model, show_result_meshlab
  File "/mmdetection3d/mmdet3d/__init__.py", line 4, in <module>
    import mmseg
ModuleNotFoundError: No module named 'mmseg'

import sys
reload(sys)
sys.setdefaultencoding("utf-8")

import importlib
importlib.reload(sys)