97 def isleap(year):  argument
110 def weekday(year, month, day):  argument
116 def monthrange(year, month):  argument
151     def itermonthdates(self, year, month):  argument
172     def itermonthdays2(self, year, month):  argument
180     def itermonthdays(self, year, month):  argument
195     def monthdatescalendar(self, year, month):  argument
203     def monthdays2calendar(self, year, month):  argument
213     def monthdayscalendar(self, year, month):  argument
221     def yeardatescalendar(self, year, width=3):  argument
234     def yeardays2calendar(self, year, width=3):  argument
247     def yeardayscalendar(self, year, width=3):  argument