Cache/Memoize any command line program. Keeps stdout, stderr and exit code, env aware.

cmdcache.py

import sys, os
import joblib
import subprocess

mem = joblib.Memory('.', verbose=False)
@mem.cache
def run_cmd(args, env):
	process = subprocess.run(args, capture_output=True, text=True)
	return process.stdout, process.stderr, process.returncode

stdout, stderr, returncode = run_cmd(sys.argv[1:], dict(os.environ))
sys.stdout.write(stdout)
sys.stdout.write(stderr)
sys.exit(returncode)

outdated by https://pypi.org/project/cmdstancache/