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Re:Python Patterns: An Optimization Anecdote by casenelson on Sunday December 18, 2011 @09:18AM (#3366655)
Just a note that there was good discussion about this before [1].

Remember that this essay is quite old (2002) and Python has changed significantly. [2]

[1] http://news.ycombinator.com/item?id=1859417

[2] http://keithdevens.com/weblog/archive/2002/Apr/10/AnOptimiza...

Re:Python Patterns: An Optimization Anecdote by machrider on Sunday December 18, 2011 @12:05PM (#3366954)
Thanks for the links. The most interesting thing in the previous HN thread was learning that this article is a) really old (probably outdated), and b) written by Guido!