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Diffstat (limited to 'Doc/whatsnew/3.3.rst')
| -rw-r--r-- | Doc/whatsnew/3.3.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst index 9afd8ae..e8d9d98 100644 --- a/Doc/whatsnew/3.3.rst +++ b/Doc/whatsnew/3.3.rst @@ -696,6 +696,21 @@ collections classes. Aliases for ABCs are still present in the .. XXX addition of __slots__ to ABCs not recorded here: internal detail +contextlib +---------- + +:class:`~collections.ExitStack` now provides a solid foundation for +programmatic manipulation of context managers and similar cleanup +functionality. Unlike the previous ``contextlib.nested`` API (which was +deprecated and removed), the new API is designed to work correctly +regardless of whether context managers acquire their resources in +their ``__init`` method (for example, file objects) or in their +``__enter__`` method (for example, synchronisation objects from the +:mod:`threading` module). + +(:issue:`13585`) + + crypt ----- |