# A simple function that takes two numbers a, b and adds them def add(a, b) return a + b # define a tuple containing the argument values values = (1, 2) # ERROR - values is a single entity, so only one argument is passed here add(values) # unpack the tuple with * # this unpacks the elements of the tuple into positional arguments # (1, 2) becomes 1, 2 add(*values)