Coerce with new style classes

[Blair Hall]

I can't seem to use coerce with the new style classes,
any suggestions?

Here is some code.

class A:
    def __init__(self,a):
        self.x = a
    def __add__(self,y):
        return A(self.x + y.x)
    def __radd__(self,y):
        return A(y.x + self.x)
    def __coerce__(self,y):
        return self,A(y)

class Aobj(object):
    def __init__(self,a):
        self.x = a
    def __add__(self,y):
        return Aobj(self.x + y.x)
    def __radd__(self,y):
        return Aobj(y.x + self.x)
    def __coerce__(self,y):
        return self,Aobj(y)

if( __name__ == '__main__'):

    print
    a = A(3)
    b = a + 2
    c = 3 + a
    print b.x, c.x

    a = Aobj(3)
    b = a + 2
    c = 3 + a
    print b.x,c.x

When run, this file (called coerce.py) produces the following output:

>>>
5 6
Traceback (most recent call last):
  File
"C:\PYTHON22\lib\site-packages\Pythonwin\pywin\framework\scriptutils.py",
line 301, in RunScript
    exec codeObject in __main__.__dict__
  File "C:\proj_py\Learning\coerce\coerce.py", line 30, in ?
    b = a + 2
  File "C:\proj_py\Learning\coerce\coerce.py", line 15, in __add__
    return Aobj(self.x + y.x)
AttributeError: 'int' object has no attribute 'x'