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Thu Apr 28 11:10:04 CEST 2011 · https://mail.python.org/pipermail/python-dev/2011-April/111022.html

Nick Coghlan wrote:

> Because this assertion is an assertion about the behaviour of
> comparisons that violates IEEE754, while the assertions I list are all
> assertions about the behaviour of containers that can be made true
> *regardless* of IEEE754 by checking identity explicitly.

Aren't you making something of a circular argument here?
You're saying that non-reflexive comparisons are okay because
they don't interfere with certain critical invariants. But
you're defining those invariants as the ones that don't
happen to conflict with non-reflexive comparisons!

-- 
Greg

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[Python-Dev] PyObject_RichCompareBool identity shortcut