This patch removes all uses of "assert" in the regression test suite
and replaces them with a new API verify(). As a result the regression
suite will also perform its tests in optimization mode.

Written by Marc-Andre Lemburg. Copyright assigned to Guido van Rossum.
diff --git a/Lib/test/test_nis.py b/Lib/test/test_nis.py
index e1670d1..56382c5 100644
--- a/Lib/test/test_nis.py
+++ b/Lib/test/test_nis.py
@@ -1,4 +1,4 @@
-from test_support import verbose, TestFailed, TestSkipped
+from test_support import verify, verbose, TestFailed, TestSkipped
 import nis
 
 print 'nis.maps()'