Wrapping a script with subprocess.Popen()

Question

I have a script that's provided with another software package - which I would not like to modify in any way. I need to execute this script, provide a password, and then interact with it from the terminal (using raw_input, etc.).

Answer 1

pexpect is what you want to use.

Pexpect is a Python module for spawning child applications and controlling them automatically. Pexpect can be used for automating interactive applications such as ssh, ftp, passwd, telnet, etc. It can be used to a automate setup scripts for duplicating software package installations on different servers. It can be used for automated software testing. It should work on any platform that supports the standard Python pty module. The Pexpect interface focuses on ease of use so that simple tasks are easy.