Advent countdown

advent.py

import datetime as dt
from time import sleep as s

curr_date = dt.datetime.now().replace(month=11,day=27)

class Candles(list):
    def __repr__(self):
        items = ['\N{CANDLE}' if i else '_' for i in self]
        return '[{items}]'.format(items=', '.join(items))

candles = Candles([False]*4)

v = dt.datetime.now().replace(month=12,day=24)
n = v - dt.timedelta(v.isoweekday()%7)

while not all(candles):
    left = (n - curr_date).days
    if not left/7 % 1 and left/7 < 4:
        candles[int((4-left/7)-1)] = True
        print(f'{curr_date:%Y-%m-%d} {candles}', end='\n\n')
    curr_date += dt.timedelta(1); s(0.1)
else:
    print('Merry Christmas!')