In [47]: def dictify( someclass):
   ....:     class mydict( object):
   ....:         def __getitem__( self, name):
   ....:             return getattr( self, name)
   ....:     return type( "anonymous", ( someclass, mydict), {})
   ....: 

In [48]: class foo( object):
   ....:     def __init__(self):
   ....:         self.x="test"
   ....:         
   ....:         

In [49]: bar = dictify( foo)()

In [50]: bar
Out[50]: <__main__.anonymous object at 0xb79a16ec>

In [51]: bar["x"]
Out[51]: 'test'