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author | Andrew Svetlov <andrew.svetlov@gmail.com> | 2012-08-14 12:38:15 (GMT) |
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committer | Andrew Svetlov <andrew.svetlov@gmail.com> | 2012-08-14 12:38:15 (GMT) |
commit | f158d86074465914c8de22e357c17090eb959da4 (patch) | |
tree | 58de571246d4f7f9905c96ff480de009348329a6 | |
parent | e88a2445bc31dce0caa0be9b543689a953c1f920 (diff) | |
download | cpython-f158d86074465914c8de22e357c17090eb959da4.zip cpython-f158d86074465914c8de22e357c17090eb959da4.tar.gz cpython-f158d86074465914c8de22e357c17090eb959da4.tar.bz2 |
Issue #14167: Document return statement in finally blocks.
Patch by Yury Selivanov.
-rw-r--r-- | Doc/reference/compound_stmts.rst | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst index 4ce7324..687ba3e 100644 --- a/Doc/reference/compound_stmts.rst +++ b/Doc/reference/compound_stmts.rst @@ -307,12 +307,23 @@ If :keyword:`finally` is present, it specifies a 'cleanup' handler. The :keyword:`try` clause is executed, including any :keyword:`except` and :keyword:`else` clauses. If an exception occurs in any of the clauses and is not handled, the exception is temporarily saved. The :keyword:`finally` clause -is executed. If there is a saved exception, it is re-raised at the end of the -:keyword:`finally` clause. If the :keyword:`finally` clause raises another -exception or executes a :keyword:`return` or :keyword:`break` statement, the -saved exception is set as the context of the new exception. The exception -information is not available to the program during execution of the -:keyword:`finally` clause. +is executed. If there is a saved exception or :keyword:`break` statement, +it is re-raised at the end of the :keyword:`finally` clause. If the +:keyword:`finally` clause raises another exception the saved exception +is set as the context of the new exception; if the :keyword:`finally` clause +executes a :keyword:`return` statement, the saved exception is discarded:: + + def f(): + try: + 1/0 + finally: + return 42 + + >>> f() + 42 + +The exception information is not available to the program during execution of +the :keyword:`finally` clause. .. index:: statement: return |