Quick and easy access to the Decimal module, with number of d.p.'s

decimal_utils.py

# Avoid 'D = decimal.Decimal' crud

from decimal import Decimal
from typing import Union as U


def decimalize(num: float, digits_str: str) -> Decimal:
    return Decimal(num).quantize(Decimal(digits_str))


def no_dp(num: U[float, Decimal]) -> Decimal:
    return decimalize(num, '1.0')


def one_dp(num: U[float, Decimal]) -> Decimal:
    return decimalize(num, '0.1')


def two_dp(num: U[float, Decimal]) -> Decimal:
    return decimalize(num, '0.01')


def three_dp(num: U[float, Decimal]) -> Decimal:
    return decimalize(num, '0.001')