Example jtop_logger.py throws exception in jtop.py

[cap9qd]

Describe the bug When I try to run the python examples I get the following error:

File "/usr/local/lib/python3.6/dist-packages/jtop/jtop.py", line 556, in stats
    stats['NVJPG'] = self.engine.nvjpg['rate'] if self.engine.nvjpg else 'OFF'
TypeError: 'int' object is not subscriptable

To Reproduce Steps to reproduce the behavior: 1: Installed jtop via pip3 (currently shipped jetpack 4.6) I also tried pip/pip2 for python2.7. 2: Restart jetson 3: Verified jtop works. 4: Run the example jtop_logger.py.

Expected behavior Output jtop data.

Additional context This is a brand new install of jetpack without running any apt updates. I need to pin docker and containerd and haven't figure that out yet.

[cap9qd]

Something that I have noticed is that nvjpg is being utilized from another process off and on (Frigate beta) and toggles back and forth from "OFF" to showing running at 6xx.xxMHz. The example works fine until it switches state but that happens often.

EDIT: Looks to happen when nvjpg swaps from OFF to running. The example ran for a few lines to the CSV before throwing the exception.

[cap9qd]

Seems this is the "offending" code in service.py (lines 421 and 422)

        if nvjpg_data:
            data['engines']['NVJPG'] = nvjpg_data['rate'] if nvjpg_data['status'] else {}

This returns an int or an empty dict. IDK what is the best option as changing this to match the other nvdec and nvenc will break jtop.

For my purposes I updated jtop.py @ line 556 to handle the int for now: stats['NVJPG'] = (self.engine.nvjpg/1000000) if type(self.engine.nvjpg) is int else 'OFF'

EDIT: IDK what the best option is or I would create a PR...

[rbonghi]

This error should now be fixed with the latest release 4.0 try to install and check again

sudo -H pip install -U jetson-stats