Minor nit to prevent dropping a space in the HTML generation.
diff --git a/Doc/ext/ext.tex b/Doc/ext/ext.tex
index 0891185..100f8a5 100644
--- a/Doc/ext/ext.tex
+++ b/Doc/ext/ext.tex
@@ -173,8 +173,8 @@
argument to \keyword{raise}). A third variable contains the stack
traceback in case the error originated in Python code. These three
variables are the \C{} equivalents of the Python variables
-\code{sys.exc_type}, \code{sys.exc_value} and \code{sys.exc_traceback}
-(see the section on module \module{sys} in the \emph{Python Library
+\code{sys.exc_type}, \code{sys.exc_value} and \code{sys.exc_traceback} (see
+the section on module \module{sys} in the \emph{Python Library
Reference}). It is important to know about them to understand how
errors are passed around.