diff options
| -rw-r--r-- | Doc/library/weakref.rst | 11 | ||||
| -rw-r--r-- | Doc/whatsnew/3.4.rst | 16 |
2 files changed, 14 insertions, 13 deletions
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst index e84ac2b..9ca60a9 100644 --- a/Doc/library/weakref.rst +++ b/Doc/library/weakref.rst @@ -123,15 +123,6 @@ Extension types can easily be made to support weak references; see weakref. If there is no callback or if the referent of the weakref is no longer alive then this attribute will have value ``None``. - .. note:: - - Like :meth:`__del__` methods, weak reference callbacks can be - called during interpreter shutdown when module globals have been - overwritten with :const:`None`. This can make writing robust - weak reference callbacks a challenge. Callbacks registered - using :class:`finalize` do not have to worry about this issue - because they will not be run after module teardown has begun. - .. versionchanged:: 3.4 Added the :attr:`__callback__` attribute. @@ -247,7 +238,7 @@ These method have the same issues as the and :meth:`keyrefs` method of .. class:: finalize(obj, func, *args, **kwargs) Return a callable finalizer object which will be called when *obj* - is garbage collected. Unlike an ordinary weak reference, a finalizer is + is garbage collected. Unlike an ordinary weak reference, a finalizer will always survive until the reference object is collected, greatly simplifying lifecycle management. diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst index a6dbe8a..bb2c69d 100644 --- a/Doc/whatsnew/3.4.rst +++ b/Doc/whatsnew/3.4.rst @@ -657,9 +657,9 @@ available for other implementations to use. (Contributed by Brian Thorne in gc -- -New :func:`~gc.get_stats` returns a list of three per-generation dictionaries -containing the collections statistics since interpreter startup. (Contributed -by Antoine Pitrou in :issue:`16351`.) +New function :func:`~gc.get_stats` returns a list of three per-generation +dictionaries containing the collections statistics since interpreter startup. +(Contributed by Antoine Pitrou in :issue:`16351`.) hashlib @@ -1103,6 +1103,10 @@ to be invoked when an object is garbage collected, without needing to carefully manage the lifecycle of the weak reference itself. (Contributed by Richard Oudkerk in :issue:`15528`) +The callback, if any, associated with a :class:`~weakref.ref` is now +exposed via the :attr:`~weakref.ref.__callback__` attribute. (Contributed +by Mark Dickinson in :issue:`17643`.) + xml.etree --------- @@ -1482,6 +1486,12 @@ Changes in the Python API compliance with the language spec; Jython and PyPy already were. (:issue:`17434`). +* :meth:`ssl.SSLSocket.getpeercert` and :meth:`ssl.SSLSocket.do_handshake` + now raise an :exc:`OSError` with ``ENOTCONN`` when the ``SSLSocket`` is not + connected, instead of the previous behavior of raising an + :exc:`AttributError`. In addition, :meth:`~ssl.SSLSocket.getpeercert` + will raise a :exc:`ValueError` if the handshake has not yet been done. + Changes in the C API -------------------- |