That is an argument why CL might have preferred to implement the PoserPython calls in Python. It is up to them and actually none of my business how they do the implementation of these calls. My argument is: why not provide a Perl interface, as well as a Python interface? My experience is that Python programmers are rare (well at least from where I am looking :-) and usually very experienced in the art of programming. Perl programmers come in kinds, like beginners to very experienced programmers, old-style scripting do-this-step-and-then-another to more recent class-and-module style. I am not asking CL to put PoserPython aside. I am merely suggesting to make a Perl interface for the already existing PoserPython.