[issue15879] set.__or__, __and__, etc create subclass types, but ignore __new__

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc added the comment:

This was already fixed (in the 3.x releases) by issue1721812.

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nosy: +amaury.forgeotdarc
resolution:  -> out of date
status: open -> closed
superseder:  -> A subclass of set doesn't always have __init__ called.

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<http://bugs.python.org/issue15879>
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