[PyQt] Can't set icon on QTreeWidgetItem

[Filip Gruszczyński]

I am trying to set an icon on QTreeWidgetItem and I can't achieve
this. The icon simply doesn't appear. The code is short:

class MessageBoxSelect(QTreeWidget):

	

	def __init__(self, parent=None):

		QTreeWidget.__init__(self, parent)

		self.setRootIsDecorated(True)

		self.setColumnCount(1)

		self.setIconSize(QSize(12, 12))

		self.model().setHeaderData(0, Qt.Horizontal,

								   self.tr(u"Wszystkie foldery"))

		

		self.root = QTreeWidgetItem()

		self.root.setText(0, self.tr(u'Lokalne foldery'))

		self.root.setIcon(0, QIcon(':/images/registration.png'))

		self.addTopLevelItem(self.root)

Could anyone help me?

-- 
Filip Gruszczyński