如何在 Python 中减去日期时间？

Question

我正在尝试为 python 制作一个年龄计算器，但我在减去用户输入的出生日期和今天的日期时遇到了问题。我试过浮动但它不起作用。我尝试减去变量本身，但这也不起作用。

age_str = input ("Enter your birthday on dd-mm-yy Format:")```

age = datetime.datetime.strptime(age_str, '%d-%m-%Y')```

today_str = datetime.date.today()```

today = datetime.datetime.strptime(today_str, '%d-%m-%Y')```

total = age - today```

Answer 1

from datetime import date

def calculate_age(born):
    today = date.today()
    return today.year - born.year - ((today.month, today.day) < (born.month, born.day))

如何在 Python 中减去日期时间？

How can I subtract datetime in Python?

python-3.8