python 从身份证中获取生日，年龄，性别信息

class GetInformation(object):

     def __init__(self,id):
         self.id = id
         self.birth_year = int(self.id[6:10])
         self.birth_month = int(self.id[10:12])
         self.birth_day = int(self.id[12:14])

     def get_birthday(self):
         """通过身份证号获取出生日期"""
         birthday = "{0}-{1}-{2}".format(self.birth_year, self.birth_month, self.birth_day)
         return birthday

     def get_sex(self):
         """男生：1 女生：2"""
         num = int(self.id[16:17])
         if num % 2 == 0:
             return 2
         else:
             return 1

     def get_age(self):
         """通过身份证号获取年龄"""
         now = (datetime.datetime.now() + datetime.timedelta(days=1))
         year = now.year
         month = now.month
         day = now.day

         if year == self.birth_year:
             return 0
         else:
             if self.birth_month > month or (self.birth_month == month and self.birth_day > day):
                 return year - self.birth_year - 1
             else:
                 return year - self.birth_year

id = '110110199509255713'
birthday = GetInformation(id).get_birthday() # 1995-09-25
age = GetInformation(id).get_age() # 23