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Rewrite module-globals summary entry, and expand the full description a bit.

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R David Murray 2013-12-22 14:05:11 -05:00
parent 2aa9d52ed2
commit ca7946193f
1 changed files with 6 additions and 3 deletions
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Doc/whatsnew/3.4.rst
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@ -124,11 +124,11 @@ Significantly Improved Library Modules:
CPython implementation improvements: CPython implementation improvements:
* :pep:`442`: :ref:`Safe object finalization <whatsnew-pep-442>` * :pep:`442`: :ref:`Safe object finalization <whatsnew-pep-442>`
* Leveraging :pep:`442`, :ref:`module globals are no longer set to None
during finalization <whatsnew-pep-442>`, in most cases (:issue:`18214`).
* :pep:`445`: :ref:`Configurable memory allocators <whatsnew-pep-445>` * :pep:`445`: :ref:`Configurable memory allocators <whatsnew-pep-445>`
* :pep:`456`: :ref:`Secure and interchangeable hash algorithm <whatsnew-pep-456>` * :pep:`456`: :ref:`Secure and interchangeable hash algorithm <whatsnew-pep-456>`
* :pep:`436`: :ref:`Argument Clinic <whatsnew-pep-436>`. * :pep:`436`: :ref:`Argument Clinic <whatsnew-pep-436>`.
* Improve finalization of Python modules to avoid setting their globals
to None, in most cases (:issue:`18214`).
* A more efficient :mod:`marshal` format (:issue:`16475`). * A more efficient :mod:`marshal` format (:issue:`16475`).
Please read on for a comprehensive list of user-facing changes. Please read on for a comprehensive list of user-facing changes.
@ -933,7 +933,10 @@ part of a reference cycle.
As part of this change, module globals are no longer forcibly set to As part of this change, module globals are no longer forcibly set to
:const:`None` during interpreter shutdown in most cases, instead relying :const:`None` during interpreter shutdown in most cases, instead relying
on the normal operation of the cyclic garbage collector. on the normal operation of the cyclic garbage collector. This avoids a
whole class of interpreter-shutdown-time errors, usually involving
``__del__`` methods, that have plagued Python since the cyclic GC
was first introduced.
.. seealso:: .. seealso::