A multiple tuple is a tuple of tuples.
example
((0, 1, 2), (3, 4, 5), (6, 7, 8), (9, 10, 11), (12, 13, 14))
You can iterate over a multiple tuple using the python destructuring syntax in the following way
x = ((0, 1, 2), (3, 4, 5), (6, 7, 8), (9, 10, 11), (12, 13, 14)) for a, b, c in x: print(a + b + c)
Output
This will give the output
3 12 21 30 39
This structure is useful when you want to return a structure that has defined order and you want it to be immutable.