--- a/src/reportlab/lib/testutils.py	Fri Nov 29 13:21:17 2013 +0000
+++ b/src/reportlab/lib/testutils.py	Fri Nov 29 15:57:46 2013 +0000
@@ -1,5 +1,8 @@
 #Copyright ReportLab Europe Ltd. 2000-2012
 #see license.txt for license details
+import __main__
+__main__._rl_testing=True
+del __main__
 __version__='''$Id$'''
 __doc__="""Provides support for the test suite.