reccomend me good python library for fuzzing

i am starting learning about fuzzing. there are not many input bars. but i don't know much about reverse engenering. what i am testing is a multi-display control program. this program runs on user-PC and there is other program that runs on server.

i am planning to make a automated-tests with python. so recommend me what is better to do or other testing tool for my program.

i haven't ever tested a program before so i can not test very well if you don't know much about fuzzing but you have tested a program before recommend me what i need to do

thank you