def OnSelChanged(self, event):
        self.item = event.GetItem()
        url = self.tree.GetItemText(self.item)
        if url and url != ROOT_NAME:
            cefPanel = chrome.ChromeCtrl(self.tabs, useTimer=True, url=str(url))
            self.tabs.AddPage(cefPanel, url)
            self.tabs.SetSelection(1-self.tabs.GetPageCount())
        event.Skip()
dataset/ETHPy150Open cztomczak/cefpython/cefpython/cef3/wx-subpackage/examples/sample2.py/MainFrame.OnSelChanged/swapped operands of `-`