xml parsing - elementtree vs sax dom

python several ways parse xml...

i know unequivocally basement parsing sax. functions tide parser, an event-driven api.

i know dom parser also. reads xml memory translates objects accessed python.

generally speaking, easy select between twin depending indispensable do, memory constraints, performance, etc.

(hopefully i'm repremand far.)

since python 2.5, also have elementtree. does review dom sax? some-more identical to? since improved before parsers?