Passing the constant subprocess.PIPE as either of them you specify that you That set the pipes that the child process uses as its stdin and stdout. Subprocess.Popen can take two optional named arguments, stdin and stdout, Of the child and exploring what possibilities this uncovers. Next, we’ll work at changing the stdin and stdout Makes sure that the returncode attribute is changed from being None when theĬhild process terminates, at which point the mother process will quickly alsoīy default, the stdin and stdout of the child process are set to be the sameĪs the stdin and stdout of the mother, meaning that say_my_name.py The subsequent while loop repeatedly polls the Popen object, and To the one that would be started by typing python say_my_name.py at a command Subprocess.Popen creates a Popen object and kicks off a subprocess similar
# run_say_my_name.py import subprocess import sys proc = subprocess.
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