[PATCH 1 of 4] test-check-py3-compat: remove false output from "python3 check-py3-compat.py"

[Yuya Nishihara]

On Sat, 1 Sep 2018 17:59:31 +0530, Pulkit Goyal wrote:
> On Sat, Sep 1, 2018 at 7:26 AM Yuya Nishihara <yuya at tcha.org> wrote:
> 
> > # HG changeset patch
> > # User Yuya Nishihara <yuya at tcha.org>
> > # Date 1535764718 -32400
> > #      Sat Sep 01 10:18:38 2018 +0900
> > # Node ID 875e635c201c1d1cf1c3f8d511ed32b791e8c419
> > # Parent  a7e22dd31f540916e79fbf23ff9f1c5baf380c53
> > test-check-py3-compat: remove false output from "python3
> > check-py3-compat.py"
> >
> > If python3 were python2, these errors would be reported, but we're running
> > check-py3-compat.py on Python 3 here.
> >
> 
> Queued this series, many thanks!
> 
> Do you have an idea on how to fix this file failure here:
> https://buildbot.mercurial-scm.org/builders/hg%20tests/builds/1917/steps/run-tests.py%20%28python%202.7.10%29/logs/stdio
> .
> I read about that _Py_ZeroStruct is python 2 thing and is removed on Python
> 3. Looks like the C files are still build using Python 2?

Looks like that. If we run setup.py with python2, py3 binaries wouldn't be
built. We'll have to enable these tests only if $PYTHON is python3.