def modifiersPressed(self, modifiers):
        self.validateCursorState(modifiers)
Sets the tracing function with the pydev debug function and initializes needed facilities.
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/gui/graphics_view.py/QInteractiveGraphicsView.modifiersPressed--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/common/diagnostic/pydevDebug/pydevd.py/settrace