calling C functions from Python

[Matt Cheselka]

Hello, 

I'm fairly new to Python and I'm wondering if there is a way to call C
functions from within python?  For instance (very simple) I have an object file
that contains a function to print "hello world" to the screen.  In the python
code I create a button to which I bind a call to this print function.  Does
something like this exist?

TIA,

Matt Cheselka
cheselka at noao.edu