datetime.datetime.now().isocalendar()
返回结果是三元组(年号,第几周,第几天)
也可以求任意一天的周序号
datetime.date(2014, 6, 8).isocalendar()以上是求2014-06-08这一天的周序号
number_of_week = 28 // 7number_of_day = 28 % 7
word = "是第%s周周%s"
print(word % (number_of_week,number_of_day)
#(请采纳)
def weekend(day):if day.lower() in ['saturday','sunday']:
return True
else:
return False