gistfile1.py

class Bar(object):
  def __init__(self,p1,p2):
    self.p1 = p1
    self.p2 = p2

  def val(self):
    return (self.p1,self.p2)

  def __lt__( self, other):
    return self.val() < other.val()

  def __le__( self, other):
    return self.val() <= other.val()

  def __eq__( self, other):
    return self.val() == other.val()

  def __ne__( self, other):
    return self.val() != other.val()

  def __gt__( self, other):
    return self.val() > other.val()

  def __ge__( self, other):
    return self.val() >= other.val()

  def __hash__(self):
    return self.val().__hash__()

  
b1 = Bar('a','b')
b2 = Bar('c','d')
b3 = Bar('a','b')
print b1 == b3

d = {}
d[b1] = 'hoge'
d[b2] = 'fuge'

print "b1:hash = %d" % b1.__hash__()
print "b2:hash = %d" % b2.__hash__()
print "b3:hash = %d" % b3.__hash__()

print b3 in d.keys()
print d[b3]

gistfile2.txt