testsuite: Use python3 by default
authorBen Gamari <bgamari.foss@gmail.com>
Tue, 29 Nov 2016 21:58:24 +0000 (16:58 -0500)
committerBen Gamari <ben@smart-cactus.org>
Wed, 30 Nov 2016 01:38:43 +0000 (20:38 -0500)
commit605bb9b4608121c462fb3d9f9281e7427f7ccc72
treebda583464bb600b390a5777b4dbe97fd513d4737
parentdd9ba503bd4a2b3851098a7fa69e15682ab1c536
testsuite: Use python3 by default

Summary:
It turns out that Phyx's fix for #12554 (D2684) still fails with mingw-w64
python 2.7. However, Python 3 (both msys2 and mingw-w64) work fine. Given that
supporting Python 2 has already become rather tiresome (as @thomie warned it
would), let's just move to python3 by default.

Test Plan: Validate

Reviewers: austin, Phyx

Reviewed By: Phyx

Subscribers: Phyx, thomie

Differential Revision: https://phabricator.haskell.org/D2766

GHC Trac Issues: #12554
testsuite/driver/runtests.py
testsuite/mk/boilerplate.mk