I don't have time for a full tutorial, but here is how I managed, after weeks of trying without luck, to get Psycopg2 to work with Python 2.7.3 and PostgreSQL 9.2 on Mac OS 10.8, Mountain Lion.
It's been a while since the complaint and I've been working on it. Now I am sure it's not D-Link's fault. Just the amount of posts by people with Macbook pro's and weird network trouble is overwhelming. Check out this thread:
When I bought my Mac I made sure I could run Guild Wars, the one online game I play. I booted into Windows every time I wanted to play and it wasn't too much of a hassle. It wasn't ideal either.