A `Range` type in python that ensures that a value is within a certain range of positive values (not inclusive of the last)

range_type.py

ranged_int = type('ranged_int', (int,), {})

# # define a type alias
# type RangedInt = int


class RangeObj:
    def __new__(self, floor, ceil):
        if ceil <= floor or floor >= ceil:
            raise ValueError(
                "Invalid format for type <RangedInt>:"
                " must specify correct `ceil` and `floor` values"
                " ceil cannot be less than or equal to floor and vice versa"
            )
        return type('IntRange', (), {'ceil': ceil, 'floor': floor})


class RangedInt(int):
    def __new__(cls, range_object: RangeObj, value: int) -> RangeObj:
        if value < range_object.floor or value >= range_object.ceil:
            raise ValueError(
                "Invalid number specified, value cannot be greater"
                " than or equal to <RangeObj.ceil> or less"
                " than <RangeObj.floor>"
            )
        return super().__new__(cls, value)


# test
R1 = RangeObj(5, 10)

x1 = RangedInt(R1, 9)
print(x1) # prints the value as expected

x2 = RangedInt(R1, 12) # raises an ValueError exception