Python 3 compatibility for the cPickle module.

GaudiPolicy/qmtest_classes/GaudiTest.py

@@ -64,7 +64,7 @@ if sys.platform == "win32":
     import win32pipe
     import win32process
 else:
-    import cPickle
+    from six.moves import cPickle
     import fcntl
     import select
     import qm.sigmask

cmake/tests/cmake_coverage.py

@@ -4,7 +4,7 @@ from __future__ import print_function
 import os
 import re
 import atexit
-import cPickle
+from six.moves import cPickle
 from subprocess import Popen, PIPE
 from collections import defaultdict