title: How to run 'python setup.py install' from within Python?
body: <p>I'm trying to create a generic python script for starting up a python app and I would like to install any dependent python modules if they are missing from the target system.  How can I run the equivalent of the command line command 'python setup.py install' from within Python itself?  I feel like this should be pretty easy, but I can't figure it out.  </p>