Getting stuck in an infinite loop in QGraphicsPixmapItem::boundingRect()[SOLVED]

[di_zou]

I have a widget with a QTreeView, QGraphicsScene, and a QGraphicsView:

MainWidget.py:

class MainWidget(ControlWidget):
    def __init__(self, parent):
        ControlWidget.__init__(self, parent)
 
        self.tree = TreeArea(self)  #TreeArea inherits QTreeView
        self.display = DisplayScene(self)  #DisplayScene inherits QGraphicsScene
        self.view = DisplayView(self.display)  #DisplayView inherits QGraphicsView
        self.view.show()
 
        #code to set up layout
    def Open(self):
        fileName = QFileDialog.getOpenFileName(self, "Open File", QDir.currentPath(), "(*.xml *.xmf *.xmn)")

class MainWidget(ControlWidget):
    def __init__(self, parent):
        ControlWidget.__init__(self, parent)
       
        self.tree = TreeArea(self)  #TreeArea inherits QTreeView
        self.display = DisplayScene(self)  #DisplayScene inherits QGraphicsScene
        self.view = DisplayView(self.display)  #DisplayView inherits QGraphicsView
        self.view.show()
       
        #code to set up layout
    def Open(self):
        fileName = QFileDialog.getOpenFileName(self, "Open File", QDir.currentPath(), "(*.xml *.xmf *.xmn)")

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The QGraphicsScene contains a bunch of QGraphicsPixmapItems in it. The QGraphicsView displays them on the screen. When I click a "Open" button, I enter into the Open() function in my widget. When this happens, I go into an infinite loop where python will continuously go through each QGraphicsPixmapItem's boundingRect() function.

Here is my class that inherits QGraphicsPixmapItem:

class DisplayItem(QGraphicsPixmapItem):
    def __init__(self, parent, pixmap=None, graphView=None):
        if pixmap:
            self.HasPixmap = True
        QGraphicsPixmapItem.__init__(self, pixmap)
 
        self.setAcceptHoverEvents(True)
        self.setFlag(QGraphicsItem.ItemIsMovable)
        self.setFlag(QGraphicsItem.ItemIsSelectable)
        self.setZValue(1)
        self.setOffset(-9, -9)
    def boundingRect(self):
        adjust = 2.0
        return QRectF(-10 - adjust, -10 - adjust, 23 + adjust, 23 + adjust)

class DisplayItem(QGraphicsPixmapItem):
    def __init__(self, parent, pixmap=None, graphView=None):
        if pixmap:
            self.HasPixmap = True
        QGraphicsPixmapItem.__init__(self, pixmap)
       
        self.setAcceptHoverEvents(True)
        self.setFlag(QGraphicsItem.ItemIsMovable)
        self.setFlag(QGraphicsItem.ItemIsSelectable)
        self.setZValue(1)
        self.setOffset(-9, -9)
    def boundingRect(self):
        adjust = 2.0
        return QRectF(-10 - adjust, -10 - adjust, 23 + adjust, 23 + adjust)

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I went through the program with a debugger, and I ended up in the boundingRect() function. I go into the boundingRect() function right as I execute the "fileName = QFileDialog.getOpenFileName" command. Also, if I don't set the pixmaps on the QGraphicsPixmapItems, I don't have this problem. This only happens when the QGraphicsPixmapItems have a pixmap. So what is going on?