# operator.itemgetter(item) // operator.itemgetter(*items)

# Return a callable object that fetches item from its operand using the operand’s __getitem__() method. If multiple items are specified, 
# returns a tuple of lookup values. For example: After f = itemgetter(2), the call f(r) returns r[2]. After g = itemgetter(2, 5, 3), 
# the call g(r) returns (r[2], r[5], r[3]).
# Equivalent to:
def itemgetter(*items):
    if len(items) == 1:
        item = items[0]
        def g(obj):
            return obj[item]
    else:
        def g(obj):
            return tuple(obj[item] for item in items)
    return g

# The items can be any type accepted by the operand’s __getitem__() method. Dictionaries accept any hashable value. Lists, tuples, and 
# strings accept an index or a slice.