Fix attribute lookup reference
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@ -277,7 +277,7 @@ class ViewBox(GraphicsWidget):
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scene = self.scene()
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scene = self.scene()
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if scene == self._lastScene:
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if scene == self._lastScene:
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return
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return
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if self._lastScene is not None and hasattr(self.lastScene, 'sigPrepareForPaint'):
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if self._lastScene is not None and hasattr(self._lastScene, 'sigPrepareForPaint'):
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self._lastScene.sigPrepareForPaint.disconnect(self.prepareForPaint)
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self._lastScene.sigPrepareForPaint.disconnect(self.prepareForPaint)
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if scene is not None and hasattr(scene, 'sigPrepareForPaint'):
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if scene is not None and hasattr(scene, 'sigPrepareForPaint'):
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scene.sigPrepareForPaint.connect(self.prepareForPaint)
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scene.sigPrepareForPaint.connect(self.prepareForPaint)
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