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Expanding tuples when calling functions

>>> def foo((a, b, c)):
...     print c
...     print a
...     print b
...
>>> parameters = ('apple', 'bear', 'cat')
>>> foo(parameters)
cat
apple
bear

 The proper way to call the function foo is with a tuple of three elements. When the function is called, the
elements are assigned to different local variables within foo.
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