输入用户的身份证号码并计算年龄

用户输入身份证号码，输入用户的出生年月，并计算他现在多少岁了（算到2021-11-15）

>>> from datetime import *
>>> def str2date(Id):
    date = Id[6:10],Id[10:12],Id[12:14]
    return '-'.join(date)

>>> def calculate_age(date):
    born = datetime.strptime(date, '%Y-%m-%d')
    today = datetime.strptime('2021-11-15', '%Y-%m-%d')
    return today.year - born.year - ((today.month, today.day) < (born.month, born.day))

>>> s = '320500200207081111'
>>> calculate_age(str2date(s))
19
>>> s = '320500200212081111'
>>> calculate_age(str2date(s))
18
>>>