Answer 1

Firstly , to explain yield i will have to explain what a generator is.

Unlike functions which return a specific value or argument Everytime it's called , generators return distinct values when they are called and the yield keyword is what is used . Think of yield like a keyword that returns a value from a generator 😉

Answer 2

Check this out: https://www.geeksforgeeks.org/JUMP_LINK__&&__python__&&__JUMP_LINK-yield-keyword/