class BaseClass(object):
    def __del__(self):
        print 'BaseClass->Destructor'

class DerivativeClass(BaseClass):
    def __del__(self):
        print 'DerivativeClass->Destructor'
        #Invoke destructor of the base class, it works
        BaseClass.__del__(self)
        #Doesn't work
        #super(DerivativeClass, self).__del__()

instance = DerivativeClass()

Exception TypeError: 'must be type, not None' in <bound method
DerivativeClass.__del__ of <__main__.DerivativeClass object at 0xb73a682c>> ignored

class BaseClass(object):
    def __del__(self):
        print 'BaseClass->Destructor'

class DerivativeClass(BaseClass):
    def __del__(self):
        print 'DerivativeClass->Destructor'
        super(DerivativeClass, self).__del__()

instance = DerivativeClass()
del instance

class BaseClass(object):
    def __del__(self):
        print 'BaseClass->Destructor'

class DerivativeClass(BaseClass):
    def __del__(self):
        print 'DerivativeClass->Destructor'
        super(type(self), self).__del__()

instance = DerivativeClass()

class BaseClass(object):
    def __del__(self):
        print 'BaseClass->Destructor'

class DerivativeClass(BaseClass):
    def __del__(self):
        print 'DerivativeClass->Destructor'
        super(DerivativeClass, self).__del__()

def someScope ():
    instance = DerivativeClass()

someScope ()