In order to render a mantra node with hrender cmdline on windows i should open a hcmd.exe and type “csh” then use the hrender command in the shell.
is it possible to do that in python with a subprocess.popen method because i want to create a render manager plugin stuff with python to render a mantra task.Its very easy to implement it using maya cmdline render command with a subprocess.popen but i can't make it

work in houdini yet.Can anyone help?