wxGraphicsContext.GetTextExntent() crash

[Expo]

With this simple code the GetTextExtent() method of wxGraphicsContext =

crash mysteriosly in apparence.


-- =

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import wx


class myframe(wx.Frame):
    def __init__(self, *args, **kwds):
        wx.Frame.__init__(self, *args, **kwds)
        self.Bind( wx.EVT_PAINT, self.OnPaint)
        =

    def OnPaint(self, event):
        dc =3D wx.PaintDC(self)
        gc =3D wx.GraphicsContext.Create(dc)
        print gc.GetTextExtent('aaa')
        =


class myapp(wx.App):
    def OnInit(self):
        frame =3D myframe(None)
        frame.Show(1)
        self.SetTopWindow(frame)
        return 1


app =3D myapp(0)
app.MainLoop()