wxPython: Default Frame button?

[Miki Tebeka]

Hello All,

I have a frame that contains a panel and several buttons.
I'd like to make one of the button the default button but 
self.SetDefaultItem(btn) or btn.SetFocus() don't work. The item in
focus is a text control inside the panel.

Any Ideas? (see short example below)

Thanks.
Miki

--- btn.py ---
import wx

class P(wx.Panel):
    def __init__(self, parent, id=-1):
        wx.Panel.__init__(self, parent, id)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(wx.TextCtrl(self, -1, size=(250, -1), value="XXX"))

        self.SetAutoLayout(True)
        self.SetSizer(sizer)
        sizer.Fit(self)

class F(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, -1, "Test Frame")
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(P(self), 0, wx.EXPAND)
        b = wx.Button(self, wx.NewId(), "Quit")
        wx.EVT_BUTTON(self, b.GetId(), self.on_quit)
        sizer.Add(b, 0, wx.EXPAND)
        
        self.SetDefaultItem(b)
        b.SetFocus()

        self.SetAutoLayout(True)
        self.SetSizer(sizer)
        sizer.Fit(self)
        

    def on_quit(self, e):
        self.Close(True)


def main():
    app = wx.PySimpleApp()
    f = F()
    f.Show(True)
    app.MainLoop()

if __name__ == "__main__":
    main()

--- btn.py ---