Try leaving the light off
Any idea what her eating habits were like before?
Does she act "shy", or confident and just not interested in food? The first can be dealt with, the latter I have generally just had to wait out a feeding strike.
For my one "shy" carpet python (still young and small), I quite literally feed in the dark with a headlamp on. A half hour after all lights go out, the snakes start cruising and it's prime feeding time for me.