interact with application installer prompts using Python

[Zem]

Some applications installers written with Installshield allow you to do
silent installs.  This requires that you create a response file to
store all of your default answers. Check this link out, maybe it'll
work for you.

http://documentation.installshield.com/robo/projects/helplib/IHelpSetup_EXECmdLine.htm#rParam

As far as other installer types, you'll have to check their respective
documentations to see if they provide any kind of silent install
mechanisms.