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bpo-43785: Improve BZ2File performance by methane · Pull Request #25299 · python/cpython · GitHub

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bpo-43785: Improve BZ2File performance #25299

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Merged
methane merged 7 commits into from
Apr 12, 2021
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bpo-43785: Improve BZ2File performance #25299

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f6cb780
bpo-43785: Improve bz2 performance.
methane Apr 9, 2021
30c5c6d
Add news
methane Apr 9, 2021
599019c
Reword the NEWS entry.
gpshead Apr 11, 2021
445efda
remove obsolete comment about a lock.
gpshead Apr 11, 2021
107f02d
minor ReST edits in NEWS
gpshead Apr 11, 2021
d444f1a
remove the addition of __iter__, save for a later PR
gpshead Apr 11, 2021
75cfbba
Remove the addition of __iter__, save for a future PR.
gpshead Apr 11, 2021
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minor ReST edits in NEWS
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gpshead authored Apr 11, 2021
commit 107f02df2bfff1dd45696b35e78bc40d62cbc9cb
6 changes: 3 additions & 3 deletions Misc/NEWS.d/next/Library/2021-04-09-14-51-58.bpo-43785.1mM5xE.rst
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
Improve ``bz2.BZ2File`` performance by removing the `RLock` from `BZ2File`.
This makes `BZ2File` thread unsafe in the face of multiple simultaneous
readers or writers, just like the equivalent classes in :mod:`gzip` and
Improve ``bz2.BZ2File`` performance by removing the RLock from BZ2File.
This makes BZ2File thread unsafe in the face of multiple simultaneous
readers or writers, just like its equivalent classes in :mod:`gzip` and
:mod:`lzma` have always been. Adds a ``BZ2File.__iter__()`` method to
delegate to the internal buffer's ``__iter__`` method. It is much faster
than calling ``BZ2File.readline()`` for each lines. Patch by Inada Naoki.
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