New submission from Patrik Dufresne:
When using tarfile.open(mode='w|gz'), the compression level is hard-coded to 9.
Seed _Stream._init_write_gz():
self.zlib.compressobj(9,
1. In regards to zlib, I would start by replacing the value of 9 by
zlib.Z_DEFAULT_COMPRESSION. This is the default value and zipfile is using it.
Why using something different.
2. Then, I would also love to control the compression level when calling
tarfile.open()
----------
components: Library (Lib)
messages: 259304
nosy: Patrik Dufresne
priority: normal
severity: normal
status: open
title: tarfile in stream mode always set zlib compression level to 9
type: behavior
versions: Python 2.7, Python 3.2, Python 3.3, Python 3.4, Python 3.5, Python 3.6
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<http://bugs.python.org/issue26253>
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