testing main access from in process

README.md

Put these in a directory together and run:

python test.py

example.py

#!/usr/bin/python3
import argparse


def main(args_=None):
    "Use args_ to pass in arguments like ['foo', 'bar']"
    parser = argparse.ArgumentParser()
    parser.add_argument('a', type=str)
    parser.add_argument('b', type=str)
    args = parser.parse_args(args_)
    print(f"args={args}")


if __name__ == '__main__':
    main()

test.py

from example import main
print("Called from this process via Python API:")
main(["this", "process"])
print("Called from subprocess via CLI:")
import subprocess, sys
subprocess.run(["python", "example.py", "another", "process"])