[pygame] Making a moving character in Pygame

[Charles Christie]

So... I've seen it done in like a billion ways, but I don't know which way
is the best. So, if I wanted to make a character move like in an arcade
shoot-em-up game how would I do that? I've seen many different ways already
but I want to know what you guys recommend. One of the ones that interested
me was the one in the pyraider gamelet up on the pygame website.