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Diffstat (limited to 'Doc/ref/ref7.tex')
-rw-r--r-- | Doc/ref/ref7.tex | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/Doc/ref/ref7.tex b/Doc/ref/ref7.tex index bfceeea..44b3c1d 100644 --- a/Doc/ref/ref7.tex +++ b/Doc/ref/ref7.tex @@ -225,25 +225,21 @@ exception, and the exception occurs in the try clause of the inner handler, the outer handler will not handle the exception.) Before an except clause's suite is executed, details about the -exception are assigned to three variables in the \module{sys} module: -\code{sys.exc_type} receives the object identifying the exception; -\code{sys.exc_value} receives the exception's parameter; -\code{sys.exc_traceback} receives a traceback object (see section -\ref{traceback}) identifying the point in the program where the -exception occurred. +exception are assigned to three variables in the +\module{sys}\refbimodindex{sys} module: \code{sys.exc_type} receives +the object identifying the exception; \code{sys.exc_value} receives +the exception's parameter; \code{sys.exc_traceback} receives a +traceback object\obindex{traceback} (see section \ref{traceback}) +identifying the point in the program where the exception occurred. These details are also available through the \function{sys.exc_info()} -function, which returns a tuple \code{(exc_type,} \code{exc_value,} -\code{exc_traceback)}. Use of the corresponding variables is +function, which returns a tuple \code{(\var{exc_type}, \var{exc_value}, +\var{exc_traceback})}. Use of the corresponding variables is deprecated in favor of this function, since their use is unsafe in a threaded program. As of Python 1.5, the variables are restored to their previous values (before the call) when returning from a function that handled an exception. -\refbimodindex{sys} -\withsubitem{(in module sys)}{% - \ttindex{exc_type}% - \ttindex{exc_value}% - \ttindex{exc_traceback}} -\obindex{traceback} +\withsubitem{(in module sys)}{\ttindex{exc_type} + \ttindex{exc_value}\ttindex{exc_traceback}} The optional \keyword{else} clause is executed when no exception occurs in the \keyword{try} clause. Exceptions in the \keyword{else} clause are |