How do I manage the stats of multiple pets?

I am currently making a tamagotchi like game where you can have multiple pets. The problem is I'm not sure how to manage all the stats of the pets without making hundreds of instance variables. Is there a better way to go about this?

Indeed, make a dictionary and put it in the container of the pet. Each pet will automatically get its own dictionary and it will be created, picked and destroyed along with the pet. The key of the dictionary is the stat, the value is the value of the stat.

hope this helps

cheers