Question

If I have a function def f(a, b, c, d) and two tuples, each with two elements, is there any way to unpack these tuples so that I can send their values to the function?

f(*tup1, *tup2)

Answer 1

As of the release of Python 3.5.0, PEP 448 “Additional Unpacking Generalizations” makes the natural syntax for this valid Python:

>>> f(*tup1, *tup2)
1 2 2 3

In older versions of Python, you can need to concatenate the tuples together to provide a single expanded argument:

>>> tup1 = 1, 2
>>> tup2 = 2, 3
>>> def f(a, b, c, d):
        print(a, b, c, d)

>>> f(*tup1+tup2)
1 2 2 3