Greetings List!

I'm writing a wrapper to the datetime.date module to support having no date. Its intended use is to hold a date value from a dbf file, which can be empty.

The class is functional at this point, but there is one thing I would like to change -- datetime.date.max and datetime.date.min are class attributes of datetime.date, and hold datetime.date values. At this point I have to have two lines outside the actual class definition to do the same thing, e.g.:

<trimmed down class code>
  class NullDate(object):
      "adds null capable DateTime.Date constructs"
      __slots__ = ['_date']
      def __new__(cls, date='', month=0, day=0):
          nulldate = object.__new__(cls)
          nulldate._date = ""
                .
                .
                .
          return nulldate
      def __getattr__(self, name):
          if self:
              attribute = self._date.__getattribute__(name)
              return attribute
          else:
              if callable(dt.date.__dict__[name]):
                  return int
              else:
                  return 0
      def __nonzero__(self):
          if self._date:
              return True
          return False
      @classmethod
      def fromordinal(cls, number):
          if number:
              return cls(dt.date.fromordinal(number))
          else:
              return cls()
  NullDate.max = NullDate(dt.date.max)
  NullDate.min = NullDate(dt.date.min)
</trimmed down class code>

How can I move those last two lines into the class definition so that:
  1) they are class attributes (not instance), and
  2) they are NullDate type objects?

~ethan~
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