below code is do the job , it will print list in reverse
x=[11,21,31,41,51,61,71,81,91]
print(list(reversed(x)))
reversed() function can help to reverse the list
reversed() : Return a reverse iterator object.
so reversed(x) is reversed list_reverseiterator object so iterator object need to convert to list again
so use list() convert iterator object to list , here list([iterable]) will return a mutable sequence list.