import wx

print wx.version()

class Frame(wx.Frame):

def __init__(self, *args, **kw):

wx.Frame.__init__(self, *args, **kw)

mbar = wx.MenuBar()

menu = wx.Menu()

menu.Append(wx.ID_EXIT, "E&xit\tCtrl-Q")

mbar.Append(menu, "&File")

self.SetMenuBar(mbar)

tbar = wx.ToolBar(self)

tbar.SetToolBitmapSize((24,24))

item = tbar.AddSimpleTool(-1,

wx.ArtProvider.GetBitmap(wx.ART_NEW, wx.ART_TOOLBAR, (24,24)))

tbar.Realize()

self.SetToolBar(tbar)

self.Bind(wx.EVT_MENU, self.OnExit, id=wx.ID_EXIT)

self.Bind(wx.EVT_UPDATE_UI, self.OnUpdate, item)

wx.UpdateUIEvent.SetUpdateInterval(1000)

def OnExit(self, evt):

self.Close()

def OnUpdate(self, evt):

print 'OnUpdate:', wx.DateTime.Now()

evt.Enable(True)

app = wx.App(redirect=False)

frm = Frame(None, title='EVT_UPDATE_UI test')

frm.Show()

app.MainLoop()