i’m running a test that starts a subprocess to invoke pants that then runs the target I want to measure, aka something like -

subprocess.Popen("./pants run")

depending on what options I use to set up coverage

./pants --coverage=

or

./pants — --cov=

I seem to get different errors. Mostly version mismatch on the coverage file, or

Failed to setup subprocess coverage. ... Exception: ModuleNotFoundError("No module named 'coverage'",)

, but it works fine for a case without subprocesses.