Conversion of volume units. Available Units: Cubic metre,Litre,KiloLitre,Gallon,Cubic yard,Cubic foot,cup USAGE :  Import this file into their respective project.  Use the function lengthconversion for conversion of volume units.  Parameters :  value : The number of from units you want to convert  fromtype : From which type you want to convert  totype : To which type you want to convert REFERENCES :  Wikipedia reference: https:en.wikipedia.orgwikiCubicmetre  Wikipedia reference: https:en.wikipedia.orgwikiLitre  Wikipedia reference: https:en.wiktionary.orgwikikilolitre  Wikipedia reference: https:en.wikipedia.orgwikiGallon  Wikipedia reference: https:en.wikipedia.orgwikiCubicyard  Wikipedia reference: https:en.wikipedia.orgwikiCubicfoot  Wikipedia reference: https:en.wikipedia.orgwikiCupunit Conversion between volume units.  volumeconversion4, cubic meter, litre 4000  volumeconversion1, litre, gallon 0.264172  volumeconversion1, kilolitre, cubic meter 1  volumeconversion3, gallon, cubic yard 0.017814279  volumeconversion2, cubic yard, litre 1529.1  volumeconversion4, cubic foot, cup 473.396  volumeconversion1, cup, kilolitre 0.000236588  volumeconversion4, wrongUnit, litre Traceback most recent call last: ... ValueError: Invalid 'fromtype' value: 'wrongUnit'  Supported values are: cubic meter, litre, kilolitre, gallon, cubic yard, cubic foot, cup
from typing import NamedTuple


class FromTo(NamedTuple):
    from_factor: float
    to_factor: float


METRIC_CONVERSION = {
    "cubic meter": FromTo(1, 1),
    "litre": FromTo(0.001, 1000),
    "kilolitre": FromTo(1, 1),
    "gallon": FromTo(0.00454, 264.172),
    "cubic yard": FromTo(0.76455, 1.30795),
    "cubic foot": FromTo(0.028, 35.3147),
    "cup": FromTo(0.000236588, 4226.75),
}


def volume_conversion(value: float, from_type: str, to_type: str) -> float:
    """
    Conversion between volume units.
    >>> volume_conversion(4, "cubic meter", "litre")
    4000
    >>> volume_conversion(1, "litre", "gallon")
    0.264172
    >>> volume_conversion(1, "kilolitre", "cubic meter")
    1
    >>> volume_conversion(3, "gallon", "cubic yard")
    0.017814279
    >>> volume_conversion(2, "cubic yard", "litre")
    1529.1
    >>> volume_conversion(4, "cubic foot", "cup")
    473.396
    >>> volume_conversion(1, "cup", "kilolitre")
    0.000236588
    >>> volume_conversion(4, "wrongUnit", "litre")
    Traceback (most recent call last):
        ...
    ValueError: Invalid 'from_type' value: 'wrongUnit'  Supported values are:
    cubic meter, litre, kilolitre, gallon, cubic yard, cubic foot, cup
    """
    if from_type not in METRIC_CONVERSION:
        raise ValueError(
            f"Invalid 'from_type' value: {from_type!r}  Supported values are:\n"
            + ", ".join(METRIC_CONVERSION)
        )
    if to_type not in METRIC_CONVERSION:
        raise ValueError(
            f"Invalid 'to_type' value: {to_type!r}.  Supported values are:\n"
            + ", ".join(METRIC_CONVERSION)
        )
    return (
        value
        * METRIC_CONVERSION[from_type].from_factor
        * METRIC_CONVERSION[to_type].to_factor
    )


if __name__ == "__main__":
    import doctest

    doctest.testmod()
