# gh-143706: Test that sys.argv is correctly set during main module import # when using forkserver with __main__ preloading. import multiprocessing import sys # This will be printed during module import - sys.argv should be correct here print(f"module:{sys.argv[1:]}") def fun(): # This will be printed when the function is called print(f"fun:{sys.argv[1:]}") if __name__ == "__main__": ctx = multiprocessing.get_context("forkserver") ctx.set_forkserver_preload(['__main__']) fun() p = ctx.Process(target=fun) p.start() p.join()