如何使一个脚本仅在另一个脚本运行时运行

def run_when_called():
    print("This script is running because it was called from another script.")

import target_script

target_script.run_when_called()

def main():
    print("This script is running because it was directly executed.")

if __name__ == "__main__":
    main()

import target_script

import argparse

def main():
    print("This script is running because it was called with the specified argument.")

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--run", help="Run the script", action="store_true")
    args = parser.parse_args()

    if args.run:
        main()

import subprocess

subprocess.call(["python", "target_script.py", "--run"])