[PATCH py3] global: add __bool__ to every class defining __nonzero__

[Yuya Nishihara]

On Mon, 13 Mar 2017 12:40:49 -0700, Gregory Szorc wrote:
> # HG changeset patch
> # User Gregory Szorc <gregory.szorc at gmail.com>
> # Date 1489434014 25200
> #      Mon Mar 13 12:40:14 2017 -0700
> # Node ID a00f6470c72774efa74b04ed46e5d0918224de0a
> # Parent  e6b177a3a7662366e8af0ba07ccbd9509a8cc647
> global: add __bool__ to every class defining __nonzero__
> 
> __nonzero__ was renamed to __bool__ in Python 3. This patch simply
> aliases __bool__ to __nonzero__ for every class implementing
> __nonzero__.

Seems fine. Queued, thanks.