Sort and sorted with custom key via lambda

sort_by_lambda_key.py

""" SORT options with lambda function key

Given a list of non-empty tuples, return a list sorted in increasing
order by the last element in each tuple.
e.g. [(1, 7), (1, 3), (3, 4, 5), (2, 2)] yields
[(2, 2), (1, 3), (3, 4, 5), (1, 7)]
"""
data = [(1, 7), (1, 3), (3, 4, 5), (2, 2)] 
 
sorted_by_last = sorted(data, key=lambda tup: tup[::-1])
#OR
data.sort(key=lambda tup: tup[::-1])  # sorts in place