module not found error

[Dhanyaib]

" !python tools/test.py grid_rcnn_r50_fpn_2x.py grid_rcnn_res50.pth --show " I try to run this code output like this

Traceback (most recent call last):
File "tools/test.py", line 12, in
from mmdet.apis import init_dist
ModuleNotFoundError: No module named 'mmdet'