For a ball python your temps need to be in the range of 55-60% during shed time. Some thing that I found helpful during shed time was a humid hide. Get a tupperware container big enough for your snake to get into and coil up. You want it to be a snug fit so the snake feels secure. Cut a hole in the container so your snake can get in. Then put spaghum moss in the bottom of the box and pour water in the moss until it is moist. This will give your snake a nice hide, a good humid environment to help at shed time, and it will also help boost humidity in the cage.