Quibble: A curses based application uses a TUI, not a CLI.
<a href="https://en.wikipedia.org/wiki/Text-based_user_interface" rel="nofollow">https://en.wikipedia.org/wiki/Text-based_user_interface</a>
this looks sweet. please, if the dev is reading this, make it installable with distribute/easy_install and register it on pypi (<a href="http://pypi.python.org/pypi" rel="nofollow">http://pypi.python.org/pypi</a>). it's easy to do (see <a href="http://docs.python.org/distutils/introduction.html#a-simple-example" rel="nofollow">http://docs.python.org/distutils/introduction.html#a-simple-...</a>) and makes everyone's lives simpler...
If you're into manual monitoring like this, check out
<a href="https://github.com/hcooper/sarplot" rel="nofollow">https://github.com/hcooper/sarplot</a><p>Its only dependency (beyond enabling sar) is gnuplot.