update

Author: g.ph

README.MD

@@ -41,4 +41,28 @@ func main(){
         print(_test.Call('add',1,2))
     `)
 }
+```
+
+
+### exception
+
+```
+
+func main(){
+	PyImport_AppendInittab("_test", func() *PyObject {
+		m := CreateModule("_test", "aa")
+		m.AddFunction("add", func(a, b int) int {
+		    py3.PyErr_SetString(py3.UserException(),"raise exception")
+			return a + b
+		})
+		return m.AsObj()
+	})
+	cpy3.Py_SetProgramName(os.Args[0])
+	cpy3.Py_SetPythonHome("./")
+	cpy3.Py_Initialize()
+	cpy3.PyRun_SimpleString(`
+        import _test
+        print(_test.Call('add',1,2))
+    `)
+}
 ```