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Add versionchanged notes for PEP 380

This commit is contained in:
Nick Coghlan 2012-01-14 14:43:24 +10:00
parent 2dfe6b00ed
commit 0ed8019c20
3 changed files with 11 additions and 2 deletions
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3
Doc/library/exceptions.rst
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@ -261,6 +261,9 @@ The following exceptions are the exceptions that are usually raised.
raised, and the value returned by the function is used as the
:attr:`value` parameter to the constructor of the exception.
.. versionchanged:: 3.3
Added ``value`` attribute and the ability for generator functions to
use it to return a value.
.. exception:: SyntaxError

5
Doc/reference/expressions.rst
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@ -355,7 +355,7 @@ resumed before it is finalized (by reaching a zero reference count or by being
garbage collected), the generator-iterator's :meth:`close` method will be
called, allowing any pending :keyword:`finally` clauses to execute.
When ``yield from expression`` is used, it treats the supplied expression as
When ``yield from <expr>`` is used, it treats the supplied expression as
a subiterator. All values produced by that subiterator are passed directly
to the caller of the current generator's methods. Any values passed in with
:meth:`send` and any exceptions passed in with :meth:`throw` are passed to
@ -369,6 +369,9 @@ the yield expression. It can be either set explicitly when raising
:exc:`StopIteration`, or automatically when the sub-iterator is a generator
(by returning a value from the sub-generator).
.. versionchanged:: 3.3
Added ``yield from <expr>`` to delegate control flow to a subiterator
The parentheses can be omitted when the :keyword:`yield` expression is the
sole expression on the right hand side of an assignment statement.

5
Doc/reference/simple_stmts.rst
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@ -470,10 +470,13 @@ resumed before it is finalized (by reaching a zero reference count or by being
garbage collected), the generator-iterator's :meth:`close` method will be
called, allowing any pending :keyword:`finally` clauses to execute.
When ``yield from expression`` is used, it treats the supplied expression as
When ``yield from <expr>`` is used, it treats the supplied expression as
a subiterator, producing values from it until the underlying iterator is
exhausted.
.. versionchanged:: 3.3
Added ``yield from <expr>`` to delegate control flow to a subiterator
For full details of :keyword:`yield` semantics, refer to the :ref:`yieldexpr`
section.