python - Removing QLineEdit proxy widget from QGraphicsScene on returnPressed -

what have qlineedit appear in qgraphicsview when qgraphicstextitem added scene. line edit being used set text of qgraphicsitem when double-clicked , needs removed when return key pressed.

i'm having trouble getting qlineedit deleted. i've tried deleting when return key pressed still not removed. here code reproduce behaviour:

class text(qgraphicstextitem):      def __init__(self, text, position=qpointf(0,0), parent=none, scene=none):         super().__init__(text, parent=parent, scene=scene)          self.parent = parent          self.setflag(qgraphicsitem.itemisselectable, true)          self.height = self.document().size().height()         self.width = self.document().size().width()         self.text_center = qpointf(-self.width/2, -self.height/2)          if parent:             self.parent_center = self.parent.boundingrect().center()             self.scene = self.parent.scene             self.setpos(text_center)         else:             self.setflag(qgraphicsitem.itemismovable)             self.scene = scene             self.setpos(position - self.text_center)      def mousedoubleclickevent(self, mouseevent):         self.editing = true         self.nameedit = nameeditor(self)         self.nameeditproxy = self.scene.addwidget(self.nameedit)         self.nameeditproxy.setpos(self.maptoscene(qpointf(0, 0)))   class nameeditor(qlineedit):      def __init__(self, textitem):         super().__init__(textitem.toplaintext())          self.setmaximumwidth(200)         self.setfixedwidth(200)         self.selectall()         self.grabkeyboard()          self.textitem = textitem      def returnpressed(self):         self.textitem.setplaintext(self.text())         del self   if __name__ == "__main__":      app = qapplication(sys.argv)      view = qgraphicsview()     scene = qgraphicsscene()     scene.setscenerect(0, 0, 500, 500)     view.setscene(scene)      text = text("example", position=qpointf(250, 250), scene=scene)      view.show()      sys.exit(app.exec_()) 

i deleting subclassed qlineedit via del self in returnpressed method in attempt. i've tried deleting qgraphicsproxywidget contains via del self.nameeditproxy in mousedoubleclick method of text class.

my question how can delete qlineedit on returnpressed?

in qt, simple method of removing widgets screen hide them, if not worried that; perhaps want rid of it, otherwise use

mywidget.setvisible(false) 

or

mywidget.hide(); 

you can reuse widget calling

mywidget.setvisible(true) 

or

mywidget.show() 

and repositioning anywhere want.