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1. Commits on Sep 14, 2026

   • gh-117404: Add structured version info for compression modules (GH-150567)

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     serhiy-storchaka

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     claude

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2. Commits on Apr 27, 2025

   • gh-132983: Introduce `compression` package and move `_compression` module (GH-133018)

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     emmatyping

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3. Commits on Apr 21, 2024

   • gh-115961: Add name and mode attributes for compressed file-like objects (GH-116036)

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     serhiy-storchaka

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4. Commits on Oct 19, 2021

   • bpo-45475: Revert `__iter__` optimization for GzipFile, BZ2File, and LZMAFile. (GH-29016)

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     methane

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5. Commits on Jun 22, 2021

   • bpo-44439: BZ2File.write() / LZMAFile.write() handle buffer protocol correctly (GH-26764)

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     Ma Lin

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6. Commits on Apr 13, 2021

   • bpo-43787: Add __iter__ to GzipFile, BZ2File, and LZMAFile (GH-25353)

     methane

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7. Commits on Apr 12, 2021

   • bpo-43785: Improve BZ2File performance by removing RLock (GH-25299)

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     methane

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     gpshead

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8. Commits on Mar 29, 2021

   • bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)

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     methane

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9. Commits on Apr 30, 2020

   • bpo-40443: Remove unused imports in the stdlib (GH-19803)

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10. Commits on Jan 17, 2020

    • bpo-39357: Update bz2 docstring: remove buffering (GH-18036)

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      vstinner

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11. Commits on Jan 16, 2020

    • bpo-39357: Remove buffering parameter of bz2.BZ2File (GH-18028)

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      vstinner

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12. Commits on Nov 1, 2018

    • bpo-35128: Fix spacing issues in warning.warn() messages. (GH-10268)

      

      scorphus

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      serhiy-storchaka

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13. Commits on Sep 11, 2018

    • bpo-33487: improve BZ2File Deprecation and documentation. (GH-6785)

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      Carreau

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      gpshead

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14. Commits on Sep 7, 2017

    • bpo-31370: Remove support for threads-less builds (#3385)

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      pitrou

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      vstinner

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15. Commits on Oct 2, 2016

    • Issue #28225: bz2 module now supports pathlib

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      berkerpeksag

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16. Commits on Apr 10, 2015

    • Issue #23529: Limit the size of decompressed data when reading from

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      pitrou

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17. Commits on Mar 11, 2015

    • Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with

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      serhiy-storchaka

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18. Commits on Dec 4, 2013

    • Closes #19839: Fix regression in bz2 module's handling of non-bzip2 data at EOF.

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      nvawda

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    • #19839: Fix regression in bz2 module's handling of non-bzip2 data at EOF.

      nvawda

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19. Commits on Oct 18, 2013

    • Issue #19223: Add support for the 'x' mode to the bz2 module.

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      nvawda

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20. Commits on Jul 4, 2013

    • Issue #18200: Back out usage of ModuleNotFoundError (8d28d44f3a9a)

      brettcannon

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21. Commits on Jun 14, 2013

    • Issue #18200: Update the stdlib (except tests) to use

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      brettcannon

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22. Commits on Oct 8, 2012

    • bz2 module: Rewrap docstrings at 72 columns, as per PEP 8.

      nvawda

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    • Stylistic tweaks to the bz2 module to make it easier to transplant changes from

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      nvawda

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23. Commits on Oct 1, 2012

    • Issue #16304: Further optimize BZ2File.readlines?().

      nvawda

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    • Fix error handling in new fast path of BZ2File.readline().

      nvawda

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    • Issue #16304: Another performance optimization for BZ2File.

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      nvawda

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24. Commits on Sep 30, 2012

    • Issue #16304: Further performance improvements for BZ2File.

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      nvawda

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    • Fix the return value of BZ2File._read_block() to be consistent with comments.

      nvawda

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    • Issue #16034: Fix performance regressions in the new BZ2File implementation.

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      nvawda

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25. Commits on Aug 4, 2012

    • #15546: Fix BZ2File.read1()'s handling of pathological input data.

      nvawda

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26. Commits on Jun 4, 2012

    • Add a function bz2.open(), to match gzip.open().

      nvawda

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    • Clarify acceptable values for BZ2File.__init__'s mode argument.

      nvawda

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    • Make BZ2File's fileobj support easier to use.

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      nvawda

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27. Commits on Feb 11, 2012

    • Fix seekable() in BZ2File and LZMAFile to check whether the underlying file supports seek().

      nvawda

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