打印一个人到目前为止在python中生活了多少天

from datetime import datetime

def calculate_days_lived(birthdate):
    current_date = datetime.now().date()
    birth_date = datetime.strptime(birthdate, '%Y-%m-%d').date()
    days_lived = (current_date - birth_date).days
    return days_lived

birthdate = '1990-01-01'
days_lived = calculate_days_lived(birthdate)
print("到目前为止，你已经生活了", days_lived, "天。")