Catch nis.error and raise TestFailed instead. This catches the

problem where Python is configured with the nismodule but NIS isn't
installed, or the map names don't correspond to those hardcoded in
nismodule.c (which is bogus in and of itself).

Lib/test/test_nis.py

-from test_support import verbose
+from test_support import verbose, TestFailed
 import nis
 
 print 'nis.maps()'
-maps = nis.maps()
+try:
+    # the following could fail if NIS isn't active
+    maps = nis.maps()
+except nis.error, msg:
+    raise TestFailed, msg 
+
 done = 0
 for nismap in maps:
     if verbose: