As easy a language as Python is, it isn’t immune to bugs and glitches from time to time, not to mention simple mistakes that beginners often make when writing scripts. This article discusses the ...

Python subprocess returns unknown option --module when debugging if 'subProcess: true' in launch.json #533 ...

On Windows, I believe the subprocess module doesn't look in the PATH unless you pass shell=True because it use CreateProcess () behind the scenes Hopefully these can provide some clues to hep fix it.

How does Python manage units of work meant to run side-by-side? Get started with threads and subprocesses—two different ways of getting things done in your Python programs.