Beyond Basics: Advanced Data Handling with Python's operator.itemgetter and Lambda

Extracting First Elements from Sublists. item1 = [['a', 1], ['b', 2], ['c', 3], ['d', 4]] list(map(operator.itemgetter(0), item1)) # ['a', 'b', 'c', 'd'] # Using Lambda list(map(lambda x: x[0], item1)) # ['a', 'b', 'c', 'd'] Extracting Last Eleme...