How Can I Unpack a Tuple to Pass Its Elements as Arguments to a Function in Python?

Expanding Tuples into Arguments

Consider a function defined as follows:

def myfun(a, b, c):
    return (a * 2, b + c, c + b)

Given a tuple some_tuple = (1, "foo", "bar"), how can we utilize it to invoke myfun and obtain the output (2, "foobar", "barfoo")?

Answer:

To achieve the desired result, employ the * operator, to unpack the tuple and forward its elements as positional arguments to the function. The syntax for this is as follows:

myfun(*some_tuple)

By unpacking the tuple, the * operator effectively transforms some_tuple from a collection ((1, "foo", "bar")) into three individual arguments (1, "foo", and "bar"). These arguments are then passed to myfun in the order in which they appear in the tuple.

For a more comprehensive understanding of argument unpacking, refer to the dedicated documentation on the subject.

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