class and private variables
<pre>
class Test1:
    def __init__( self ):
        self.__test = 1
    def getvalue( self ):
        return self.__test

class Test2( Test1 ):
    def __init__( self ):
        Test1.__init__( self )
        self.__test = 2

test = Test2()
</pre>

<p>Why print test.getvalue() return 1 ?</p>
