SF patch 1631942 by Collin Winter:
(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block
diff --git a/Doc/lib/libsubprocess.tex b/Doc/lib/libsubprocess.tex
index f639710..cb30974 100644
--- a/Doc/lib/libsubprocess.tex
+++ b/Doc/lib/libsubprocess.tex
@@ -284,7 +284,7 @@
print >>sys.stderr, "Child was terminated by signal", -retcode
else:
print >>sys.stderr, "Child returned", retcode
-except OSError, e:
+except OSError as e:
print >>sys.stderr, "Execution failed:", e
\end{verbatim}