[issue26253] tarfile in stream mode always set zlib compression level to 9

[Yaron de Leeuw]

Yaron de Leeuw added the comment:

I have submitted a PR on GitHub https://github.com/python/cpython/pull/2962

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nosy: +jarondl
versions: +Python 3.7 -Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26253>
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