Utilizando o import

>>> import arithmetics.addition
>>> arithmetics.addition.soma_vezes_pi(10, 5)
47.12388980384689

>>> from arithmetics import addition
>>> addition.soma_vezes_pi(5, 15)
62.83185307179586

>>> from arithmetics import addition as arit
>>> arit.soma_vezes_pi(5, 15)
62.83185307179586

>>> from arithmetics.addition import soma_vezes_pi
>>> soma_vezes_pi(15, 45)
188.49555921538757

>>> from arithmetics.addition import soma_vezes_pi as svpi
>>> svpi(15, 45)
188.49555921538757