python 日期换算星期 蔡勒公式

#!/usr/bin/env python
# encoding: utf-8

#coding=utf-8

date_star={
        '1':'星期一',
        '2':'星期二',
        '3':'星期三',
        '4':'星期四',
        '5':'星期五',
        '6':'星期六',
        '0':'星期日',
        }

def caile(*args):
    year,month,day = args
    month = int(month)
    day = int(day)
    year_one,year_two = int(str(year)[:2]),int(str(year)[2:])
    if month == 1 or month == 2:
        return (year_two-1 + (year_two-1)//4 + year_one//4 - 2*year_one + 26*(month+12+1)//10 + day -1)%7
    return (year_two + year_two//4 + year_one//4 - 2*year_one + 26*(month+1)//10 + day-1)%7

date = raw_input('输入年份 月份 天数，空格分隔>>>>:' )

year = date.split(' ')[0]
month = date.split(' ')[1]
day = date.split(' ')[2]
year,month,day = date.split(' ')
print "%s\n"%date,date_star['%s'%caile(year,month,day)]