We could also try to do this in reverse, mapping the number of days to a month name.

This first line will make an empty dictionary, which we will add to.

month_with = {} month_with[31] = 'Jan' month_with[28] = 'Feb' month_with[31] = 'Mar' month_with[30] = 'Apr' month_with # see what we have so far 

What seems to be a problem here? Can you explain it?