How are you offering the food? Live or f/t? You setting it in the 10 gallon or using tongs? You need to describe exactly how you are feeding as best as possible.
To get it to eat: Put the snake and the food in a deli cup or small container, leave it overnight. This is always the first thing I try with a trouble eater. If it doesn't work with a ft pink then use a small live one.
There are about 20 other things you can do to get a trouble eater to start feeding again. That is the 2 most basic.