how to call a program from python without waiting for it to return

Question

is there a way to call a program from python without waiting for it to return? i created a script which copies a program to a directory and runs that program. but when i cal

Answer 1

By using poll() instead of wait() on Popen it will not block and it won't wait for the program to run. However, I think the only way to really stop the entire program from waiting is by creating a daemonic thread which starts the process. That way you'll never have to wait for it.

class MyThread(threading.Thread):
    def run(self):
        '''Start your thread here'''
        pass

thread = MyThread()
thread.daemon = True
thread.start()

Answer 2

I posted a solution how to detach a process in a previous question.

Answer 3

Under Windows, if you invoke the program using the shell START command you should be able to "release" the parent process and allow it to exit. Try START /? at the DOS prompt to learn more.