Stevie_mac wrote: > Figure this! > > ### Shell1 ### > >>>>from wxPython.wx import * >>>>mb = wxMessageBox('hello') > > > ### testmb.py ### > from wxPython.wx import * > mb = wxMessageBox('hello') > <snipped> Try changing that to: from wxPython.wx import * app = wxPySimpleApp() app.MainLoop() wxMessageBox("Hello") HTH, Vincent Wehren