[PyMOL] Procedure for adding packages to pymol site-packages?

[Schubert, Carsten [PRDUS]]

Hi,

how would I go about adding a package to the $PYMOL_PATH/ext/.../site-packages 
w/o screwing up the install?

For most packages the mechanism is "python setup.py install". Would this work 
to run this from within pymol?

Thanks

        Carsten