Simplify parsing for nvidia-smi and sensors command

[wujj123456]

https://github.com/JStateson/BoincTasks/blob/0ad25e7dc51bfb41def1706c58f95d0c98dce71a/SystemdService/FetchTemps.py#L92

"nvidia-smi stats -d temp -c 1". This would give you a CSV formatted output. It would probably make your parsing much easier.

Similarly, "sensors -j" gives a json you can directly do json.loads()

[JStateson]

Where were you when this was discussed? https://askubuntu.com/questions/1195766/problem-parsing-piped-command-streams-in-python-need-help Thanks!, python, Linux, et.al. is new to me. I retire when my company switched to Linux from Windows. The current problem I have in parsing is the decimal value after the dot cannot easily be obtained using my procedure. Could not easily get rid of the "degree centigrade" symbol when parsing.

[JStateson]

going to try to get the missing decimal using differnt parsing

[wujj123456]

Oops, didn't realized I turned off github comment notifications. Sorry for the super late reply. I commented mostly because I happen to be looking into parsing these and thus learnt these shortcuts. I should have given some snippets, using python 3.8+.

For sensors, this gives you a dict to iterate through

import json
import subprocess
output = json.loads(
    subprocess.run(
        ["sensors", "-j"], capture_output=True
    ).stdout.decode("utf-8")
)

# output
import pprint
pprint.pprint(output)

For nvidia-smi:

import subprocess
output = subprocess.run(
    ["nvidia-smi", "stats", "-d", "temp", "-c", "1"], capture_output=True
).stdout.decode("utf-8")

# output, "nvidia-smi stats --help" explains which field means
for line in output.split("\n"):
    print(line)

I later realized though nvidia-smi doesn't support json output, it has -x flag to generate xml, which could help too.

Honestly, it's probably not worth touching it until next time you need to improve it or change it. I don't have all the different hardware to test the changes and thus I am just commenting here instead of a pull request.