python根据出生日期获得年龄的函数

"""
皮蛋编程(https://www.pidancode.com)
创建日期：2022/4/1
功能描述：python根据出生日期获得年龄的函数
"""
from datetime import date
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


print(calculate_age(born=date(2001,3,4)))