def __init__(self, *args, **kwargs):
super(self.__class__, self).__init__(*args, **kwargs)<EOL>self.__approved = self.approved<EOL>self.__paid = self.paid<EOL>self.__approvalDate = self.approvalDate<EOL>self.__paymentDate = self.paymentDate<EOL>
Permit easy checking to determine if the object
already exists and has changed on saving