Deprecate the sv module as per PEP 4.
diff --git a/Doc/library/undoc.rst b/Doc/library/undoc.rst
index 7a5a760..981b0ce 100644
--- a/Doc/library/undoc.rst
+++ b/Doc/library/undoc.rst
@@ -226,4 +226,6 @@
 
 :mod:`sv`
    --- Interface to the "simple video" board on SGI Indigo (obsolete hardware).
+   
+   .. warning:: The :mod:`sv` module has been removed in Python 3.0.