Fix exit error caused by callback invoked during Qt teardown
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@ -445,6 +445,10 @@ class GraphicsItem(object):
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## called to see whether this item has a new view to connect to
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## called to see whether this item has a new view to connect to
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## NOTE: This is called from GraphicsObject.itemChange or GraphicsWidget.itemChange.
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## NOTE: This is called from GraphicsObject.itemChange or GraphicsWidget.itemChange.
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if not hasattr(self, '_connectedView'):
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# Happens when Python is shutting down.
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return
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## It is possible this item has moved to a different ViewBox or widget;
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## It is possible this item has moved to a different ViewBox or widget;
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## clear out previously determined references to these.
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## clear out previously determined references to these.
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self.forgetViewBox()
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self.forgetViewBox()
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