My cornsnake fits the OP's description (well I think he's cute even if my wife doesn't), is smaller than a python when full grown (5' last I measured, about a half dollar diameter), learned 1 trick (which was one more than I expected), and is much lower maintenance than the dogs and cats (and even fish) I had previously.

And plus you get to watch them eat, which can be pretty cool even if you feed them frozen (once I warmed the mouse up, wiggled it around, and my cornsnake attacked with such vigor that there was a smear of blood against the cage.)

I really want to know what this one trick was.

Disappearing. Unfortunately, shard is still waiting for him to learn the reciprocal trick. :-D

=) Fortunately he's not learned that one yet.

He has learned that when I come near the terrarium, I'll open it, so when he wants to come out, he will come up to the screen and look for the opening. I did not expect a tiny reptilian brain to be capable of learned behavior, it was a nice surprise.

There's a lot going on in that "tiny reptilian brain" for sure. Paleocortex seems to drive 99% of human behavior as well - consciousness may just be along for the ride as an afterthought. (Maybe even when coding, sometimes at least!)

Shedding?

Depends on the type of python. I have a ball python that's maybe 4 feet long and he's full grown. They live quite awhile as well - mine is 14 years old now and he doesn't seem to be any different than when he was 4.

I also wanted to get a a ball python and name him Perl.