Fatal Python error: init_sys_streams: <stdin> is a directory, cannot continue Python runtime state: core initialized

[lkp520]

When I run "python -m torch.distributed.launch --nproc_per_node=1 people_segmentation/inference.py \ -i <validation/supervisely> \ -c <people_segmentation/configs/2020-09-25.yaml> \ -w <weight/w.pth> \ -o \ --fp16
"

I meet some problem:
Fatal Python error: init_sys_streams: is a directory, cannot continue
Python runtime state: core initialized

Current thread 0x00007f9c81ecf740 (most recent call first):

Can you help me to solve it? Thank you!