gistfile1.py

def main2():
    from tests.testapp import testapp
    from gui import skin
    with testapp(plugins=False):
        f = wx.Frame(None)
        p = wx.Panel(f)
        c = wx.CheckBox(p, -1, 'Test')
        margins = skin.ZeroMargins
        def layout():
            sz = wx.BoxSizer(wx.VERTICAL)
            sz.Add(c)
            p.Sizer = margins.Sizer(sz)
        layout()
        layout()

        f.Show()