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bpo-40495: compileall option to hardlink duplicate pyc files (GH-19901)

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compileall is now able to use hardlinks to prevent duplicates in a
case when .pyc files for different optimization levels have the same content.

Co-authored-by: Miro Hrončok <miro@hroncok.cz>
Co-authored-by: Victor Stinner <vstinner@python.org>
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Lumír 'Frenzy' Balhar 2020-05-14 16:17:22 +02:00 • committed by GitHub
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6 changed files with 285 additions and 15 deletions
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Doc/whatsnew/3.9.rst
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@ -245,6 +245,16 @@ that schedules a shutdown for the default executor that waits on the
Added :class:`asyncio.PidfdChildWatcher`, a Linux-specific child watcher
implementation that polls process file descriptors. (:issue:`38692`)
compileall
----------
Added new possibility to use hardlinks for duplicated ``.pyc`` files: *hardlink_dupes* parameter and --hardlink-dupes command line option.
(Contributed by Lumír 'Frenzy' Balhar in :issue:`40495`.)
Added new options for path manipulation in resulting ``.pyc`` files: *stripdir*, *prependdir*, *limit_sl_dest* parameters and -s, -p, -e command line options.
Added the possibility to specify the option for an optimization level multiple times.
(Contributed by Lumír 'Frenzy' Balhar in :issue:`38112`.)
concurrent.futures
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