#date.weekday():返回weekday,如果是星期一,返回0;如果是星期2,返回1,以此类推;
#data.isoweekday():返回weekday,如果是星期一,返回1;如果是星期2,返回2,以此类推;
from datetime import *
def getLastWeekDay(day=date.today):
now=day
print now
print now.isoweekday()
if now.isoweekday()==1:
dayStep=3
else:
dayStep=1
print dayStep
lastWorkDay = now - timedelta(days=dayStep)
return lastWorkDay
day=(2016,03,01)
print getLastWeekDay(day)
2016-02-29