How to reverse a klist code example

Example 1: reverse list python

>>> the_list = [1,2,3]
>>> reversed_list = the_list.reverse()
>>> list(reversed_list)
[3,2,1]

OR

>>> the_list = [1,2,3]
>>> the_list[::-1]
[3,2,1]

Example 2: index and reversing a sub list in python list

def reverse_sublist(lst,start,end):
    lst[start:end] = lst[start:end][::-1]
    return lst