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bpo-33597: Add What's New for PyGC_Head (GH-8236)
pull/5649/merge
INADA Naoki
8 years ago
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1 changed files with
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Doc/whatsnew/3.8.rst
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@ -127,6 +127,10 @@ Optimizations |
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first introduced in Python 3.4. It offers better performance and smaller |
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size compared to Protocol 3 available since Python 3.0. |
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* Removed one ``Py_ssize_t`` member from ``PyGC_Head``. All GC tracked |
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objects (e.g. tuple, list, dict) size is reduced 4 or 8 bytes. |
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(Contributed by Inada Naoki in :issue:`33597`) |
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Build and C API Changes |
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======================= |
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@ -201,6 +205,10 @@ Changes in the Python API |
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* :func:`shutil.copyfile` default buffer size on Windows was changed from |
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16 KiB to 1 MiB. |
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* ``PyGC_Head`` struct is changed completely. All code touched the |
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struct member should be rewritten. (See :issue:`33597`) |
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CPython bytecode changes |
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------------------------ |
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