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

Answer 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