test_pipes.py 文件源码

def testRepr(self):
        t = pipes.Template()
        self.assertEqual(repr(t), "<Template instance, steps=[]>")
        t.append('tr a-z A-Z', pipes.STDIN_STDOUT)
        self.assertEqual(repr(t),
                    "<Template instance, steps=[('tr a-z A-Z', '--')]>")