wx python timer wont run continuously after dialog

[soep]

I'm using Python and wxPython to interact between my user and an USB device. The USB device is somewhat slow in processing commands. Therefor, after sending the command, I'm showing a dialog notifying the user about the command and giving the device enough time to process the command. The code:

Code: Select all

def ActionOnButtonClick( self, event ):
    # Send command to USB device;
    device.Send("command")

    # Notify user + allowing device to process command;
    dlg = wx.MessageDialog(parent=None, message="Info", caption="Info", style=wx.OK)
    dlg.ShowModal()
    dlg.Destroy()

    # Start timer;
    self.RunTimer.Start(500)

When I run the code like this the "RunTimer" will run only once. After some testing I noticed that when I remove the messagedialog, the RunTimer will run continuously without any problems.

I can't figure out what I'm doing wrong. Any thoughts/ideas?

Thank you in advance for your answer!

Best regards,

Peter