Feeding question

I'm planning on buying a bulk order of frozen rats but had one concern. How often will a python need an upgraded rat size. Since they come in packages of 25, will the python eat the same size meal 25 times before it needs an upgrade? All this assuming they eat one a week, or maybe one per 5 days for the baby.
Thanks

well the biggest prey size I would say would be a medium rat. Now a baby isn't going to eat a medium rat, probably a weanling rat. What I did was buy a pack of weanling rats and feed one to the babies, two to the medium sized snakes, and three to the bigger ones. That seemed to work well for a while but now I feed one appropriately sized prey item.

i had that same dilema so i just bought an assortment some small rats some med rats and some weinling mice, i figured if two weinlings werent doing it then a small rat would.... good luck.