I have copied some codes as below.
class Person(object):
def __init__(self, family_name, first_name):
self.family_name = family_name
self.first_name = first_name
def familyName(self):
return self.family_name
def firstName(self):
return self.first_name
def __str__(self):
return '<Person: %s %s>'%(self.first_name, self.family_name)
class MITPerson(Person):
nextIdNum = 0
def __init__(self, familyName, firstName):
Person.__init__(self, familyName, firstName)
self.idNum = MITPerson.nextIdNum
MITPerson.nextIdNum += 1
def getIdNum(self):
return self.idNum
def __str__(self):
return '<MIT Person: %s %s>'%(self.first_name, self.family_name)
def __cmp__(self,other):
return self.idNum == other.idNum
MIT2 = MITPerson("Wang","Jean")
id = MIT2.getIdNum
print(id)
When I try to run the print(id0, I got the message below:
<bound method MITPerson.getIdNum of <main.MITPerson object at 0x7f0cbd112250>>
Why the id is not printed out?