numpy/numpy — pull request #4105 by seberg (2013-12-05 21:56:01+00:00)
Title: DEP: Deprecate boolean math operations

The bitwise or logical operations should be used instead,
after a while.

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To be honest, I am a bit unsure here. While it is nice, the impact out there might be rather big (this currently does not include the fixes necessary in ma and some tests, so failing).