PyMOL requires numpy (for the maths lol), pmw.
PYMOL FREE DOWNLOAD FOR WINDRS HOW TO
Cue re-teaching myself how to select residues in UCSF Chimera or some other software I have decided on. Being mostly based in a wet lab, my very limited "bioinformatics" skill requirements have been something like this: "Hmm I really need to generate a pretty image for my next presentation or publication.".