Yeah, until you can get her acclimated to strangers, she's not a good education tool. She just might not have the right temperament.
How old is she?
(Also, I have a dozen ball pythons? Completely different ball of wax, I know. Most of them are okay with handling after feeding--they're just lazy. The ones that hiss, they kind of hiss all the time anyway. Some animals just don't like change.)