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一种新的python局部调试手法

Posted on 2014-01-28 12:47:57 python

我们都知道，python里面可以用pdb来调试代码。但是pdb往往不大好用。有时候调试代码往往在多重条件里面，直接用pdb需要下条件断点，设定复杂的条件。

一个简单的办法就是这么干。

__import__('pdb').set_trace()

但是有的时候，连这个出现的条件都不满足。例如，代码必须在一个受限环境中运行，很难拿到console，或者其他林林总总的毛病。这时候，我们还有一招秘技。

import pdb, socket
s = socket.socket()
s.connect(('127.0.0.1', 8888))
f = s.makefile()
pdb.Pdb(stdin=f, stdout=f).set_trace()

在连接到的目标端口上，提前用nc做好监听，就可以在触发断点的时候直接连接上来调试。

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