* ref3.tex: added cross-ref to try statement for exc handler.
* ref7.tex: added description of sys.exc_{type,value,traceback}.
* lib5.tex: rect.intersect is different now!
diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex
index df62486..855dc82 100644
--- a/Doc/ref/ref3.tex
+++ b/Doc/ref/ref3.tex
@@ -532,12 +532,13 @@
\ttindex{f_lineno}
\ttindex{f_lasti}
-\item[Traceback objects]
+\item[Traceback objects] \label{traceback}
Traceback objects represent a stack trace of an exception. A
traceback object is created when an exception occurs. When the search
for an exception handler unwinds the execution stack, at each unwound
level a traceback object is inserted in front of the current
-traceback. When an exception handler is entered, the stack trace is
+traceback. When an exception handler is entered
+(see also section \ref{try}), the stack trace is
made available to the program as \verb\sys.exc_traceback\. When the
program contains no suitable handler, the stack trace is written
(nicely formatted) to the standard error stream; if the interpreter is