welcome to the world of picky ball python eaters. It is normal for ball pythons male and female to go off eating for many months. This year one of my girls (who usually fasts in winter) was off food from Oct-end of March. One of my males is still off food since Oct.(and he would eat anything before, hence the name garbage gut).
Have another female that just decided to stop eating in about the last month(she is younger). And another male that randomly eats weeks and weeks can go by between meals.
The thing to watch is if the snake starts losing alot of weight cause then you may have a real problem and a trip to the vet may be needed.
Otherwise, just hang in there they will eat when they are ready not when we want them too I guess.
I am soo tired of keeping "pet" mice and rats myself!!!!!
-----
Misty Sprouse Ball Pythons