How do I reverse a sublist in a list in place?

Question

I\'m supposed to create a function, which input is a list and two numbers, the function reverses the sublist which its place is indicated by the two numbers. for example this is

Answer 1

... I'm not sure is it's in place.

...

lst[start:end]=sublist

Yes, it's in place. lst is never rebound, only its object mutated.