diff --git a/tools/scan-build/set-xcode-analyzer b/tools/scan-build/set-xcode-analyzer
index 93824af255d61536468078328c95d6f43d174e68..e76e30446763a543811c4438f6672366226e341c 100755
--- a/tools/scan-build/set-xcode-analyzer
+++ b/tools/scan-build/set-xcode-analyzer
@@ -4,9 +4,13 @@
 # want to the use the system version of Python on Mac OS X.
 # This one has the scripting bridge enabled.
 
+import sys
+if sys.version_info < (2, 7):
+    print "set-xcode-analyzer requires Python 2.7 or later"
+    sys.exit(1)
+    
 import os
 import subprocess
-import sys
 import re
 import tempfile
 import shutil