Pandoras Box

The weakref module allows the Python programmer to create weak references to objects.In the following, the term referent means the object which is referred to by a weak reference.A weak re

Reprint:As with threads, a common use pattern for multiple processes is to divide a job up among several workers to run in parallel. Effective use of multiple processes usually requires some com

Reprint:http://rhettinger.wordpress.com/2011/05/26/super-considered-super/Much has been written about super() and much of that writing has been a failure. This article seeks to improve on the situ

Reference:http://adam.gomaa.us/blog/2008/aug/11/the-python-property-builtin/I used a question that involved property as one of the interview questions during a recent developer search, and I fou

找了一篇关于Decorator的文章，虽然有点小问题，但在如何应用的方面写的比较好。具体的小问题我会在文章中间用红色字标注一下。The Python programming language has an interesting syntactic feature called a decorator. Let's use an example in order to explain

Reprint:http://pymotw.com/2/multiprocessing/basics.htmlThe simplest way to spawn a second is to instantiate a Process object with a target function and call start() to let it begin working.

I pick this post from stackoverflow, it's really awesome, thanks fore-satis .  Here is the original link : http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-pythonClasses

Reference:http://www.informit.com/articles/printerfriendly.aspx?p=1309289Python descriptors have been around a long time—they were introduced way back in Python 2.2. But they're still not widely u

从C++转行Python的人可能会认为__del__等价于C++中的Destructor，但同时会发现一些很奇怪的问题，比如在__del__中使用类变量时遇到Exception AttributeError: "'NoneType' object has no attribute '***'"的问题。  通过查阅资料，发现__del__不是一般意义上的Destructor，不推荐使

Reprint:http://pymotw.com/2/threading/Thread ObjectsThe simplest way to use a Thread is to instantiate it with a target function and call start() to let it begin working.import threa