From 7f5e6db63d058c974f1ea4ba2eaadc1a95463a00 Mon Sep 17 00:00:00 2001
From: Bastien Orivel <eijebong@bananium.fr>
Date: Mon, 3 Jun 2019 22:02:52 +0200
Subject: [PATCH] Check for python's version in mach

On archlinux, python 2 isn't installed by default and it leads to some
really confusing error messages when running mach
---
 mach | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mach b/mach
index f56c94c96aa..c92653e1af8 100755
--- a/mach
+++ b/mach
@@ -15,6 +15,13 @@ from __future__ import print_function, unicode_literals
 import os
 import sys
 
+# Check for the current python version as some users (especially on archlinux)
+# may not have python 2 installed and their /bin/python binary symlinked to
+# python 3.
+if sys.version_info >= (3, 0):
+    print("mach does not support python 3, please install python 2")
+    sys.exit(1)
+
 
 def main(args):
     topdir = os.path.abspath(os.path.dirname(sys.argv[0]))