WxPython。如何关闭单元格编辑器？

import wx
import wx.grid

class MyGrid(wx.grid.Grid):
    def __init__(self, parent):
        wx.grid.Grid.__init__(self, parent)
        
        self.CreateGrid(5, 5)
        self.Bind(wx.grid.EVT_GRID_CELL_LEFT_CLICK, self.OnCellLeftClick)
        
    def OnCellLeftClick(self, event):
        row = event.GetRow()
        col = event.GetCol()
        
        if self.IsCellEditControlEnabled():
            self.SetCellValue(row, col, self.GetCellValue(row, col))
        event.Skip()

class MyFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="Grid Demo")
        
        panel = wx.Panel(self)
        grid = MyGrid(panel)
        
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(grid, 1, wx.EXPAND)
        panel.SetSizer(sizer)
        
if __name__ == "__main__":
    app = wx.App()
    frame = MyFrame()
    frame.Show()
    app.MainLoop()