[IronPython] not support Mixin

[Chu Kevin]

I run this code:

[EMAIL PROTECTED] /tmp]# vi Lover.py 

class lover:
    def __init__(self,man='man',woman='woman'):
        self.lover='When a '+man+' love a '+woman
        print self.lover
    def smile(self):
        print self.lover+':-)'
    def kiss(self):
        print self.lover+':-)(-:'


[EMAIL PROTECTED] /tmp]# python
Python 2.1 (#1, Apr 18 2001, 17:55:45)
[GCC 2.95.3 19991030 (prerelease)] on linux2
Type "copyright", "credits" or "license" for more information.

>>>from Lover import lover

>>>John_and_Rose=lover()
When a man love a woman

>>>John_and_Rose.smile()
when a man love a woman:-)

>>>John_and_Rose.kiss()
when a man love a woman:-)(-:

>>>John_and_Rose.sayGoodBye()
Traceback (most recent call last):
  File "", line 1, in ?
AttributeError: lover instance has no attribute 'sayGoodBye'

>>>John_and_rose.JohnAskWhy()
Traceback (most recent call last):
  File "", line 1, in ?
AttributeError: lover instance has no attribute 'JohnAskWhy'

>>>class RoseLoveSomebodyElse:
   def sayGoodBye(self):
       print "Let's say goodbye tonight."

>>>lover.__bases__+=(RoseLoveSomebodyElse,)

>>>John_and_Rose.sayGoodBye()
Let's say goodbye tonight.
>>>

a error occur

IronPython.Objects.PythonAttributeError: 'lover' object has no
attribute 'sayGoodBye'
   at IronPython.Objects.Ops.GetAttr(Object o, String name)
   at input_8.Run(Frame frame)
   at IronPython.Hosting.PythonEngine.DoOneInteractive(Frame topFrame)
   at IronPython.Hosting.PythonEngine.RunInteractive()
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