Add checks for version 2.7

1 files changed, 4 insertions, 2 deletions

diff --git a/bin/spack b/bin/spack
index 0a6d808342..8386adaa37 100755
--- a/bin/spack
+++ b/bin/spack
@@ -1,7 +1,9 @@
-#!/usr/bin/env python2.7
+#!/usr/bin/env python
+import sys
+if not sys.version_info[:2] >= (2,7):
+    sys.exit("Spack requires Python 2.7.  Version was %s." % sys.version_info)
 
 import os
-import sys
 import argparse
 
 # Find spack's location and its prefix.