Its a bit like being bitten bya very small kitten, theteeth are sharp and numerous, but fragile and easily broken. There are two primary bites, those being (a)Food bite ~The python , for whatever reason, mistakes you for warm food, it latches on and may sometimes constrict your finger or arm pathetically, until its tiny brain tells it, "not food" and it lets go, they dont "chew" when they bite, fragile teeth.
(

defence bite ~The tiny python has only one means of defence (well any python) its mouth! most python hatchlings and juveniles will instinctively defend themselves from anything it perceives as a threat,
weather thats you or something else. Afterall, it dosent want to be eaten, good sense of self preservation is needed to acheive adult size whereitslessthreatened and generally, more docile.
The snake will bite then carefully disengage its precious teeth, its very fast and fright/reflexes are the boogiman here. You become more casual at handling and reassure the snakeand they settle down.
Its once they get adult that bites can really hurt.

Welcome to Reptile Planet Shortie!