I think if prices were raised, some of this would be avoided. Raise the prices of large pythons enough that they're not 'expendable' this way every jerk who thinks they're tough won't buy one, and the people actually interested will put down the money. Make it a large python tax or something.
Things like this happen when people think that just because it's cheap it's expendable, and they can do as they please with it.
There's no way to make your average schmoe more responsible, so it's a bit of a catch 22. I see both sides of this argument making sense, but come on people, legislation is a slippery slope, and I don't think vilifying the animals is the way to go. If only there was a way to make keepers more responsible... but there isn't. And so around we go until everyone is arguing with everyone.