def setupProblems ( self , model ) :
    classes = instantiateRelatedClasses ( model , "str" , self . _ui . shared_opengl_widget , self )
    for c in classes :
        c . setParent ( self . _ui . stackedWidgetProblemView )
        project = model . getProject model . index ( self . _ui . stackedWidgetProblemView . count ( , 0 ) )
        c . setProblem ( project . getProblem ( ) )
        self . _ui . stackedWidgetProblemView . addWidget ( c )

def setupProblems ( self , model ) :
    classes = instantiateRelatedClasses ( model , "str" , self . _ui . shared_opengl_widget , self )
    for c in classes :
        c . setParent ( self . _ui . stackedWidgetProblemView )
        project = model . getProject ( model . index ( self . _ui . stackedWidgetProblemView . count ( ) , 0 ) )
        c . setProblem ( project . getProblem ( ) )
        self . _ui . stackedWidgetProblemView . addWidget ( c )

次に示すpythonコードの誤りを修正しなさい。