Python imagenet.py load

When I used this web(jetson-inference/pytorch-collect.md at master · dusty-nv/jetson-inference · GitHub) to load imagenet.py with logitech C270 camera on terminal, it can be successful to load. But I load imagenet.py which adds python code on terminal. It can’t be successful. This error is below the picture.

Hi,

The error indicates a failure when opening a CSI camera.
It seems that you are not feeding a correct input argument.

Please check below page for the imagenet usage first:

Thanks.