如何知道今天是星期几，如何判断今天是不是月末

from datetime import datetime,date


dayOfWeek = datetime.now()#.weekday()
print dayOfWeek


dayOfWeek = datetime.today()#.weekday()

print dayOfWeek

if year:

year = int(year)

else: year = datetime.today().year

if month: month = int(month)

else: month = datetime.date.month # 获取当月第一天的星期和当月的总天数

firstDayWeekDay, monthRange = calendar.monthrange(year, month)

# 获取当月的第一天 firstDay = datetime.date(year=year, month=month, day=1)

lastDay = datetime.date(year=year, month=month, day=monthRange) # date（year=year,month=month,day=daymonthRange）

return firstDay, lastDay