LetPy

Time_Delta_Exercise

import datetime

try:
    date_x = (input("Введите дату/время в формате ДД.ММ.ГГГГ ЧЧ:ММ : "))
    date_x = datetime.datetime.strptime(date_x, '%d.%m.%Y %H:%M')
    date_x_new = date_x.replace(minute=date_x.minute + 1)
    if date_x < datetime.datetime.now():
        print("Ошибка")
        exit()
    else:
        pass
except (ValueError, NameError):
    print("Ошибка")
    exit()


def choose_plural(quantity, list_one=()):
    g = str(quantity)
    last_digit = int(g[-1])
    quantity_ = quantity % 100

    if quantity_ in range(10, 20):
        return quantity, list_one[2]
    elif last_digit >= 5 or last_digit == 0:
        return quantity, list_one[2]
    elif last_digit in range(2, 5):
        return quantity, list_one[1]
    else:
        return quantity, list_one[0]


time_delta = date_x_new - datetime.datetime.now()
time_delta_minutes = round(time_delta.total_seconds() % 3600 // 60)
time_delta_hours = round(time_delta.seconds // 3600)
type_of_minute = choose_plural(time_delta_minutes, ('минута', 'минуты', 'минут'))
type_of_hour = choose_plural(time_delta_hours, ('час', 'часа', 'часов'))
type_of_day = choose_plural(time_delta.days, ('день', 'дня', 'дней'))

if time_delta_hours < 1 and time_delta.days == 0:
    print("До часа \"Икс\" " + (str(time_delta_minutes)) + " " + type_of_minute[1])
while time_delta_hours > 1 and time_delta.days < 1:
    if time_delta_minutes == 0:
        print("До часа \"Икс\" " + (str(time_delta_hours)) + " " + type_of_hour[1])
        break
    print("До часа \"Икс\" " + (str(time_delta_hours)) + " " + type_of_hour[1] + " и "
          + (str(time_delta_minutes)) + " " + type_of_minute[1])
    break
while time_delta.days >= 1:
    if time_delta_hours == 0:
        print("До часа \"Икс\" " + (str(time_delta.days)) + " " + type_of_day[1])
        break
    print("До часа \"Икс\" " + (str(time_delta.days)) + " " + type_of_day[1] + " и "
          + (str(time_delta_hours)) + " " + type_of_hour[1])
    break