Index: lnt/tests/nt.py
===================================================================
--- lnt/tests/nt.py
+++ lnt/tests/nt.py
@@ -543,7 +543,7 @@
         module_path = os.path.join(test_path, 'TestModule')
         module_file = open(module_path)
         try:
-            exec module_file in locals, globals
+            exec(module_file, locals, globals)
         except Exception:
             info = traceback.format_exc()
             fatal("unable to import test module: %r\n%s" % (