Method determine_weight

example_code/item_121.py:91–97

(volume, density)

    @staticmethod
    def determine_weight(volume, density):
        if density < 0:
            raise InvalidDensityError("Density must be positive")
        if volume < 0:
            raise InvalidVolumeError("Volume must be positive")
        if volume == 0:
            density / volume

try:
    weight = my_module.determine_weight(1, -1)