Newbie help on wxPython

[Robert Amesz]

jsnyder wrote:

> I'm working with the wxPython tutorial and have a problem with this
> code for opening a file dialog:
> 
> def OnOpen(self,e):
> ->    dlg=wxFileDialog(self, "Choose a file", self.dirname,
> "","*.*", wxOPEN)
>         if dlg.ShowModal()==wxID_OK:
>             self.filename=dlg.GetFilename()
>             self.dirname =dlg.GetDirectory()
> ->         f=open(os.path.join(self.dirname,self.filename),'r')
>             self.control.SetValue(f.read())
>             f.close()
>         dlg.Destroy()
> 
> In the call to wxFileDialog, using the self.dirname call from the
> os module results in the error below, using the same call later in
> the open() works just fine.
> 
> Traceback (most recent call last):
>   File "C:\Python21\SampleEditor.pyw", line 46, in OnOpen
>     dlg=wxFileDialog(self, "Choose a file", self.dirname, "","*.*",
>     wxOPEN) 
> AttributeError: MainWindow instance has no attribute 'dirname'



You neglected to set self.dirname to something (in the __init__ 
function) _before_ the dialog was called, isn't it obvious? Could be a 
typo, so look carefully. You wouldn't be the first person to stare at

   self.dirmane = "C:\\"

and wonder what's wrong.


Robert Amesz