(self)
return "%04d-%02d-%02d" % (self._year, self._month, self._day)
Return the date formatted according to ISO.

        This is 'YYYY-MM-DD'.

        References:
        - http://www.w3.org/TR/NOTE-datetime
        - http://www.cl.cam.ac.uk/~mgk25/iso-time.html
Return the date formatted according to ISO.
Return the date formatted according to ISO .
def isoformat(self):
        """Return the date formatted according to ISO.

        This is 'YYYY-MM-DD'.

        References:
        - http://www.w3.org/TR/NOTE-datetime
        - http://www.cl.cam.ac.uk/~mgk25/iso-time.html
        """
        return "%04d-%02d-%02d" % (self._year, self._month, self._day)
def isoformat ( self ) : return "%04d-%02d-%02d" % ( self . _year , self . _month , self . _day )