()函数,所以返回值的类型应该是os.popen,如下所示def test_main_code(self, popen)
some code......由于os.popen使用了两次,我如何修改我的模拟代码以将return_value也用于output1。到目前为止,output1还是个空白。我已经尝试过使用side_effect通过值进行交互,但是
__del__ of <popen2.Popen3 instance at 0x7fccba7b65f0>> ignored
Exception TypeError: TypeError("argumentof type 'NoneType' is not iterable",) in <bound method Popen3.__del__ of <popen2.Popen3 instance at 0x7fccba7b62d8>