[Python-checkins] cpython (merge 3.4 -> default): Issue #21366: Document the fact that ``return`` in a ``finally`` clause
zach.ware
python-checkins at python.org
Tue May 6 16:08:23 CEST 2014
http://hg.python.org/cpython/rev/685f92aad1dc
changeset: 90569:685f92aad1dc
parent: 90567:2b18f6c37a68
parent: 90568:faaa8d569664
user: Zachary Ware <zachary.ware at gmail.com>
date: Tue May 06 09:07:51 2014 -0500
summary:
Issue #21366: Document the fact that ``return`` in a ``finally`` clause
overrides a ``return`` in the ``try`` suite.
files:
Doc/reference/compound_stmts.rst | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst
--- a/Doc/reference/compound_stmts.rst
+++ b/Doc/reference/compound_stmts.rst
@@ -337,6 +337,20 @@
reason is a problem with the current implementation --- this restriction may be
lifted in the future).
+The return value of a function is determined by the last :keyword:`return`
+statement executed. Since the :keyword:`finally` clause always executes, a
+:keyword:`return` statement executed in the :keyword:`finally` clause will
+always be the last one executed::
+
+ >>> def foo():
+ ... try:
+ ... return 'try'
+ ... finally:
+ ... return 'finally'
+ ...
+ >>> foo()
+ 'finally'
+
Additional information on exceptions can be found in section :ref:`exceptions`,
and information on using the :keyword:`raise` statement to generate exceptions
may be found in section :ref:`raise`.
--
Repository URL: http://hg.python.org/cpython
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