The python port to palm was made possible by "Stackless Python" and the fact that python has a slimmer code base. I think "stackless" refers to the python-program's stack being allocated from heap, and not shareing the real stack of the interpreter. The PERL is a beast. It has alot of features and alot of hackery, and the parser is deeply involved with the interpreter. It is huge. Palms have limited fixed size stacks and not alot of memory.