import idaapi

def cb(*args):
    print "Callback called!"
    return 1

try:
    if ctx:
        idaapi.del_menu_item(ctx)
except:
    pass

ctx = idaapi.add_menu_item("Search/", "X", "", 0, cb, tuple("hello world"))
if ctx is None:
    print "Failed to add menu!"
    del ctx
else:
    print "Menu added successfully!"