Pexpect is on PyPI, and can be installed with standard tools:

pip install pexpect


easy_install pexpect


This version of Pexpect requires Python 2.6 or 3.2 or above. For older versions of Python, continue using Pexpect 2.4.

Pexpect only works on POSIX systems, where the pty module is present in the standard library. It may be possible to run it on Windows using Cygwin.