It is common in python multiprocessing to use if __name__ == "__main__". However, if I know my child process does not need anything from __main__ module, can I remove this part? e.g.

# test_child.py
from multiprocessing import Process, get_context

def f(x):
    print(f"{x}")

def start():
    ctx = get_context("spawn")
    p = ctx.Process(target=f, args=("hello",))
    p.start()
    p.join()

# test_parent.py
from test_child import start
start()

When I run python test_parent.py , ideally the child process does not need anything from the __main__ module, so it can skil this part, and I don’t need to add if __name__ == "__main__" in test_parent.py.

Currently it will cause error though.