python根据出生日期获得年龄的方法

def calculate_age(born): today = date.today() try:  birthday = born.replace(year=today.year) except ValueError:# raised when birth date is February 29 # and the current year is not a leap year  birthday = born.replace(year=today.year, day=born.day-1) if birthday > today:  return today.year - born.year - 1 else:  return today.year - born.year