Python/CMD command

Question

So I am running a command in my python py file

myNewShell = os.system('start "%s" /d "%s" cmd /f:on  /t:0A /k "W:\\Desktop\\alias.bat"' % (myShot, myWorkDir))

This opens up a shell

How exactly would I input something into this shell directly from my python script, thus bypassing your actual cmd.exe. I have a bunch of DOSKEYs set up, such as maya which opens up the maya program. How would I add a line of code to my python script, so that it loads the shell with those aliases and inputs my command directly

You are asking the same question twice. Update your original question and dont make people split the work: stackoverflow.com/questions/10741600/… — jdi
– jdi, Commented May 28, 2012 at 16:00

Jakob Bowyer · Accepted Answer · 2012-05-28 14:41:32Z

1

Take a look at the powerful and useful subprocess module

You can then do code like this

import subprocess
pro = subprocess.Popen("cmd", stdout=subprocess.PIPE, stdin=subprocess.PIPE)
pro.stdin.write("mybat.bat\n")
pro.stdin.write("myother.bat\n")
pro.stdin.write("start mysillyprogram\n")
pro.stdin.flush()
pro.terminate() # kill the parent

answered May 28, 2012 at 14:41

Jakob Bowyer

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1 Comment

jdi Over a year ago

Use the communicate() method when using PIPE, instead of accessing the fd directly... Or, dont even open a stdout here if you dont need it.

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