Why hadn't she eaten for a while when she was with the breeder? That is a major red flag.

Waiting 2 weeks is the general rule for handling, but if she isn't eating, handling could make it more difficult ... I would wait until she's eaten two meals before you handle her just to be safe.

2 reasons why hatchling ball pythons typically refuse food ... temps and stress caused by lack of security. Make sure your temps are reading 82-84 on one side of the cage and 92-94 on the other with a good digital thermometer (those plastic "dials" and peel and stick "strips" are garbage). Also make sure she has plenty of small tight places to hide. Ball pythons like hides that touch them on all sides of their bodies. Hides that are "roomy" $uck for ball pythons. One trick that you may need to try once you get your temps right is crumpling up a bunch of newspaper and filling the cage with it to give her the security she needs to take her first meal with you.

Talk to the person you got her from and find out what she was eating for them and why she hadn't eaten for "a while" .... sounds like you might have a rough road ahead.

-adam