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bpo-34898: Add mtime parameter to gzip.compress(). (GH-9704)

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Without setting mtime, time.time() will be used as the timestamp which will
end up in the compressed data and each invocation of the compress() function
will vary over time.
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guoci 2018-11-07 04:50:23 -05:00 • committed by Serhiy Storchaka
parent d2b11af915
commit 0e7497cb46
6 changed files with 27 additions and 4 deletions
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Doc/library/gzip.rst
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@ -157,13 +157,15 @@ The module defines the following items:
Accepts a :term:`path-like object`.
.. function:: compress(data, compresslevel=9)
.. function:: compress(data, compresslevel=9, *, mtime=None)
Compress the *data*, returning a :class:`bytes` object containing
the compressed data. *compresslevel* has the same meaning as in
the compressed data. *compresslevel* and *mtime* have the same meaning as in
the :class:`GzipFile` constructor above.
.. versionadded:: 3.2
.. versionchanged:: 3.8
Added the *mtime* parameter for reproducible output.
.. function:: decompress(data)