diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 1d75f448b13..f539588e0ca 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,7 @@
+2015-03-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* dg-extract-results.sh: Check that the necessary python modules exist.
+
 2015-02-05  Ilya Verbin  <ilya.verbin@intel.com>
 
 	* gcc_update (files_and_dependencies): Add rules for liboffloadmic and
diff --git a/contrib/dg-extract-results.sh b/contrib/dg-extract-results.sh
index 0ddf25b60a6..5a8e67ea2fa 100755
--- a/contrib/dg-extract-results.sh
+++ b/contrib/dg-extract-results.sh
@@ -32,7 +32,7 @@ PROGNAME=dg-extract-results.sh
 PYTHON_VER=`echo "$0" | sed 's/sh$/py/'`
 if test "$PYTHON_VER" != "$0" &&
    test -f "$PYTHON_VER" &&
-   python -c 'import sys; sys.exit (0 if sys.version_info >= (2, 6) else 1)' \
+   python -c 'import sys, getopt, re, io, datetime, operator; sys.exit (0 if sys.version_info >= (2, 6) else 1)' \
      > /dev/null 2> /dev/null; then
   exec python $PYTHON_VER "$@"
 fi