Как сравнить две даты?

i = 0
current_datetime = datetime.now().date()
date_pacanki = [
    12-11-2020,
    19-11-2020,
    26-11-2020,
    3-12-2020,
    10-12-2020,
    17-12-2020,
    24-12-2020,
]
a = date_pacanki[i]
if i < current_datetime:
    i+=1
else:
       print(a)

import datetime as dt
 
 
date_pacanki = [
    "12 - 11 - 2020",
    "19 - 11 - 2020",
    "26 - 11 - 2020",
    "3 - 12 - 2020",
    "10 - 12 - 2020",
    "17 - 12 - 2020",
    "24 - 12 - 2020"
]
 
close_date = None
min_delta = None
 
 
for item in date_pacanki:
    date = dt.datetime.strptime(item, '%d - %m - %Y')
 
    if close_date is not None:
        if abs(date - dt.datetime.now()) < min_delta:
            min_delta = abs(date - dt.datetime.now())
            close_date = item
    else:
        min_delta = abs(date - dt.datetime.now())
        close_date = item
 
print(close_date)

current_datetime = datetime.now()
date_pacanki = [
    "12-11-2020",
    "19-11-2020",
    "26-11-2020",
    "03-12-2020",
    "10-12-2020",
    "17-12-2020",
    "24-12-2020",
]
 
result = []
for i in date_pacanki:
    date = datetime.strptime(i, '%d-%m-%Y')
    delta = date - current_datetime
    result.append((abs(delta.days), date))
result.sort(key=lambda x: x[0])
print(result[0][1])