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bpo-32489: Allow 'continue' in 'finally' clause. (GH-5822)

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Serhiy Storchaka 2018-03-18 09:56:52 +02:00 • committed by GitHub
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13
Doc/reference/compound_stmts.rst
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@ -321,8 +321,8 @@ 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, the saved exception is set as the context of the new exception.
If the :keyword:`finally` clause executes a :keyword:`return` or :keyword:`break`
statement, the saved exception is discarded::
If the :keyword:`finally` clause executes a :keyword:`return`, :keyword:`break`
or :keyword:`continue` statement, the saved exception is discarded::
>>> def f():
... try:
@ -343,10 +343,7 @@ the :keyword:`finally` clause.
When a :keyword:`return`, :keyword:`break` or :keyword:`continue` statement is
executed in the :keyword:`try` suite of a :keyword:`try`...\ :keyword:`finally`
statement, the :keyword:`finally` clause is also executed 'on the way out.' A
:keyword:`continue` statement is illegal in the :keyword:`finally` clause. (The
reason is a problem with the current implementation --- this restriction may be
lifted in the future).
statement, the :keyword:`finally` clause is also executed 'on the way out.'
The return value of a function is determined by the last :keyword:`return`
statement executed. Since the :keyword:`finally` clause always executes, a
@ -366,6 +363,10 @@ 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`.
.. versionchanged:: 3.8
Prior to Python 3.8, a :keyword:`continue` statement was illegal in the
:keyword:`finally` clause due to a problem with the implementation.
.. _with:
.. _as:

5
Doc/reference/simple_stmts.rst
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@ -686,9 +686,8 @@ The :keyword:`continue` statement
continue_stmt: "continue"
:keyword:`continue` may only occur syntactically nested in a :keyword:`for` or
:keyword:`while` loop, but not nested in a function or class definition or
:keyword:`finally` clause within that loop. It continues with the next
cycle of the nearest enclosing loop.
:keyword:`while` loop, but not nested in a function or class definition within
that loop. It continues with the next cycle of the nearest enclosing loop.
When :keyword:`continue` passes control out of a :keyword:`try` statement with a
:keyword:`finally` clause, that :keyword:`finally` clause is executed before