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I am using "subprocess" to execute a .exe file from a Python script. I need to do this in a loop, ie start the .exe, run it for a minute, kill it, do it all over again.

I am using subprocess.check_call to execute it with arguments, but I don't know how to stop it.

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subprocess.check_call is used to check the returned value - use subprocess.Popen this returns a process ID, (pid), which can be used after your time limit with pid.terminate() to end the process, (kill it).

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