you can use this format to get the list in a month and you can sort i a table
def day_in_month(year,month):
if month>12 or month<1 :
return"invalid input"
months_days=[31,28,31,30,31,30,31,31,30,31,30,31]
if is_leap(year) and month==2 :
return 29
return months_days[month-1]
