[Tutor] Has anyone done an A* algorithm in Python?

[Chris McCormick]

Hello all,
   I am relatively new to Python, and have been using Python/SDL/pyGame to create a simple roleplaying application.  I want my NPC's to navigate around obstacles, and I have found some resources on the A* 
algorithm.  Unfortunately, the C code is pretty unintelligible to me.  Has anyone done something similar in a Python project?  Seeing some code, or even pseudocode, would be a great help.

Thanks in advance,
Chris McCormick