wxasync_example.py

class TestFrame(wx.Frame):
    def __init__(self, parent=None):
        super(TestFrame, self).__init__(parent)
        vbox = wx.BoxSizer(wx.VERTICAL)
        button1 =  wx.Button(self, label="Submit")
        vbox.Add(button1, 1, wx.EXPAND|wx.ALL)
        self.SetSizer(vbox)
        self.Layout()
        AsyncBind(button1, wx.EVT_BUTTON, self.async_callback)

    async def async_callback(self, event):
        print ("button clicked")
        await asyncio.sleep(1)
        print ("working")
        await asyncio.sleep(1)
        print ("completed")

app = WxAsyncApp()
frame = TestFrame()
frame.Show()
app.SetTopWindow(frame)
loop = get_event_loop()
loop.run_until_complete(app.MainLoop())