title: How to set attributes using property decorators?
body: <p>This code returns an error: AttributeError: can't set attribute
  This is really a pity because I would like to use properties instead of calling the methods. Does anyone know why this simple example is not working?</p>
  
  <pre><code>#!/usr/bin/python2.6
  
  
  class Bar( object ):
      """ 
      ...
      """
  
      @property
      def value():
        """
        ...
        """    
        def fget( self ):
            return self._value
  
        def fset(self, value ):
            self._value = value
  
  
  class Foo( object ):
      def __init__( self ):
          self.bar = Bar()
          self.bar.value = "yyy"
  
  if __name__ == '__main__':
      foo = Foo()
  </code></pre>