本文实例讲述了python根据出生日期返回年龄的方法。分享给大家供大家参考。具体实现方法如下：
def calculateage(self, date):
”’calculates the age and days until next birthday from the given birth date”’
try:
date = date.split(‘.’)
birthdate = datetime.date(int(date[0]), int(date[1]), int(date[2]))
today = datetime.date.today()
if (today.month > birthdate.month):
nextyear = datetime.date(today.year + 1, birthdate.month, birthdate.day)
elif (today.month < birthdate.month):
nextyear = datetime.date(today.year, today.month + (birthdate.month - today.month), birthdate.day)
elif (today.month == birthdate.month):
if (today.day > birthdate.day):
nextyear = datetime.date(today.year + 1, birthdate.month, birthdate.day)
elif (today.day < birthdate.day):
nextyear = datetime.date(today.year, birthdate.month, today.day + (birthdate.day - today.day))
elif (today.day == birthdate.day):
nextyear = 0
age = today.year - birthdate.year
if nextyear == 0: #if today is the birthday
return '%d, days until %d: %d' % (age, age+1, 0)
else:
daysleft = nextyear - today
return '%d, days until %d: %d' % (age, age+1, daysleft.days)
except:
return 'wrong date format'
使用方法如下：
print checkdate(‘2000.05.05’)
希望本文所述对大家的python程序设计有所帮助。