Merged revisions 83763 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r83763 | brian.curtin | 2010-08-06 14:27:32 -0500 (Fri, 06 Aug 2010) | 3 lines

  Fix #9324: Add parameter validation to signal.signal on Windows in order
  to prevent crashes.
........
diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst
index 0f84537..74ff78d 100644
--- a/Doc/library/signal.rst
+++ b/Doc/library/signal.rst
@@ -236,6 +236,10 @@
    see the :ref:`description in the type hierarchy <frame-objects>` or see the
    attribute descriptions in the :mod:`inspect` module).
 
+   On Windows, :func:`signal` can only be called with :const:`SIGABRT`,
+   :const:`SIGFPE`, :const:`SIGILL`, :const:`SIGINT`, :const:`SIGSEGV`, or
+   :const:`SIGTERM`. A :exc:`ValueError` will be raised in any other case.
+
 
 .. _signal-example: