import wx

class CheckBoxFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, -1, 'Checkbox Example', 
                size=(150, 200))
        panel = wx.Panel(self, -1)
        wx.CheckBox(panel, -1, "Alpha", (35, 40), (150, 20))
        wx.CheckBox(panel, -1, "Beta", (35, 60), (150, 20))
        wx.CheckBox(panel, -1, "Gamma", (35, 80), (150, 20))

if __name__ == '__main__':
    app = wx.PySimpleApp()
    CheckBoxFrame().Show()
    app.MainLoop()