Python Inheritance Detail

#Multiple inheritance
class Base1:
    @classmethod
    def f1(self):
    print  'Base1 f1'
    def f2(self):
    print  'Base1 f2'   

class Base2:
    def f1(self):
    print  'Base2 f1'
    def f2(self):
    print  'Base2 f2'
    def f3(self):
    print  'Base2 f3'   

class MultiDerived(Base1, Base2):
    def f1(self):
    print  'MultiDerived f1'

print '###########Multiple inheritance'
md = MultiDerived()
md.f1()  #MultiDerived f1
md.f2()  #Base1 f2
md.f3()  #Base2 f3
Base1.f1()  #Base1 f1  #classmethod
#Base2.f1()  #fail
#MultiDerived.f1()  #fail


#Multi-level inheritance
class Base:
    def f1(self):
    print  'Base f1'

class Derived1(Base):
    def f1(self):
    print  'Derived1 f1'
    def f2(self):
    print  'Derived1 f2'

class Derived2(Derived1):
    pass

print '###########Multi-level inheritance'
d2 = Derived2()
d2.f1() #Derived1 f1
d2.f2() #Derived1 f2