As expected because you didn't install python for all users it isn't going to work from another user.
2020-12-11 15:20:36.047 [DEBUG][6] > 'python' is not recognized as an internal or external command,
2020-12-11 15:20:36.049 [DEBUG][7] > 'pip' is not recognized as an internal or external command,
If you want to see locast today, change the service to run as your user account instead of Local System and it should just work. Restarting should confirm that in the logs.
Alternatively maybe it is easier solution might be to add two paths to the system path
OK. I believe some progress has been made. Too late to try your advice, Martin, as I had already uninstalled Python. So...
Re-installed Python for all users and restarted the service. I also got a little brave and, after re-running "pip install lxml requests m3u8," tried "python locast.py install" from the locast folder. Started but...well...the logs tell a much more complete story.