Looking at the long list of people who have contributed to Python, you will notice that my name is somewhere. This moment excites me, considering my deep respect for the project (the only other mega FLOSS project I have comparable respect for is Debian).
Interestinly, my patch went through a few iterations before it was accepted, and even then, with some modifications. It was an eye-opening experience, and made me learn a little more than I thought I needed to. Now, I just need to do a few more of these.