plural_form.py

def plural_form(number: int, forms: list[str]) -> str:
    """
    Returns correct plural form for Russian Language
    :param number: 33
    :param forms: ["год", "года", "лет"]
    :return: года
    """
    if number % 10 == 1 and number % 100 != 11:
        return forms[0]
    elif 2 <= number % 10 <= 4 and (number % 100 < 10 or number % 100 >= 20):
        return forms[1]
    else:
        return forms[2]