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LWN.net Weekly Edition for May 23, 2013
An "enum" for Python 3
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
Yes, if the compiler can prove that its impossible for the condition to be true it can and will omit the check. Sadly because the compiler's visibility is so narrow it usually can't do this except in the most obvious of situations.
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