Add Item to a Menu, with action
    m = Menu(parent, menu, label, longtext, action=None)

def MenuItem(parent, menu, label='', longtext='', action=None, default=True,
             **kws):
    """Add Item to a Menu, with action
    m = Menu(parent, menu, label, longtext, action=None)
    """
    item = menu.Append(-1, label, longtext, **kws)
    kind = item.GetKind()
    if kind == wx.ITEM_CHECK:
        item.Check(default)
    if callable(action):
        parent.Bind(wx.EVT_MENU, action, item)
    return item