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Kirill Smelkov
cpython
Commits
d5c875bb
Commit
d5c875bb
authored
Jul 11, 2018
by
INADA Naoki
Committed by
GitHub
Jul 11, 2018
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bpo-33597: Add What's New for PyGC_Head (GH-8236)
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Doc/whatsnew/3.8.rst
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d5c875bb
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@@ -127,6 +127,10 @@ Optimizations
first introduced in Python 3.4. It offers better performance and smaller
size compared to Protocol 3 available since Python 3.0.
* Removed one ``Py_ssize_t`` member from ``PyGC_Head``. All GC tracked
objects (e.g. tuple, list, dict) size is reduced 4 or 8 bytes.
(Contributed by Inada Naoki in :issue:`33597`)
Build and C API Changes
=======================
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@@ -201,6 +205,10 @@ Changes in the Python API
* :func:`shutil.copyfile` default buffer size on Windows was changed from
16 KiB to 1 MiB.
* ``PyGC_Head`` struct is changed completely. All code touched the
struct member should be rewritten. (See :issue:`33597`)
CPython bytecode changes
------------------------
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