multiple.py

class A(object):
  def __init__(self, v):
    self.v = v
    print "A.v:",self.v


class B(A):
  def __init__(self, v):
   super(B, self).__init__(v)
   self.v += 10
   print "B.v:",self.v

class C(A):
  def __init__(self, v):
   super(C, self).__init__(v)
   self.v += 100
   print "C.v:",self.v
 
class D(B,C):
  def __init__(self, v):
   super(D,self).__init__(v)
   self.v += 1000
   print "D.v:",self.v

d = D(1)
print "d:",d.v

output.md

$> python2 ./multiple.py
A.v: 1
C.v: 101
B.v: 111
D.v: 1111
d: 1111