[Python-3000-checkins] r58007 - python/branches/py3k/Doc/reference/compound_stmts.rst
georg.brandl
python-3000-checkins at python.org
Thu Sep 6 16:03:41 CEST 2007
Author: georg.brandl
Date: Thu Sep 6 16:03:41 2007
New Revision: 58007
Modified:
python/branches/py3k/Doc/reference/compound_stmts.rst
Log:
New exception catching syntax.
Modified: python/branches/py3k/Doc/reference/compound_stmts.rst
==============================================================================
--- python/branches/py3k/Doc/reference/compound_stmts.rst (original)
+++ python/branches/py3k/Doc/reference/compound_stmts.rst Thu Sep 6 16:03:41 2007
@@ -219,13 +219,13 @@
.. productionlist::
try_stmt: try1_stmt | try2_stmt
try1_stmt: "try" ":" `suite`
- : ("except" [`expression` ["," `target`]] ":" `suite`)+
+ : ("except" [`expression` ["as" `target`]] ":" `suite`)+
: ["else" ":" `suite`]
: ["finally" ":" `suite`]
try2_stmt: "try" ":" `suite`
: "finally" ":" `suite`
-The :keyword:`except` clause(s) specify one or more exception handlers. When no
+The :keyword:`except` clause(s) specify one or more exception handlers. When no
exception occurs in the :keyword:`try` clause, no exception handler is executed.
When an exception occurs in the :keyword:`try` suite, a search for an exception
handler is started. This search inspects the except clauses in turn until one
@@ -245,12 +245,12 @@
as if the entire :keyword:`try` statement raised the exception).
When a matching except clause is found, the exception is assigned to the target
-specified in that except clause, if present, and the except clause's suite is
-executed. All except clauses must have an executable block. When the end of
-this block is reached, execution continues normally after the entire try
-statement. (This means that if two nested handlers exist for the same
-exception, and the exception occurs in the try clause of the inner handler, the
-outer handler will not handle the exception.)
+specified after the ``as`` keyword in that except clause, if present, and the
+except clause's suite is executed. All except clauses must have an executable
+block. When the end of this block is reached, execution continues normally
+after the entire try statement. (This means that if two nested handlers exist
+for the same exception, and the exception occurs in the try clause of the inner
+handler, the outer handler will not handle the exception.)
.. index::
module: sys
@@ -545,4 +545,3 @@
.. [#] Currently, control "flows off the end" except in the case of an exception or the
execution of a :keyword:`return`, :keyword:`continue`, or :keyword:`break`
statement.
-
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