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

[Xiang Zhang]

Xiang Zhang added the comment:

*compresslevel* takes effect for modes 'w:gz', 'r:gz', 'w:bz2', 'r:bz2', 'x:gz', 'x:bz2'. For stream modes, 'r|gz', 'w|gz', 'r|bz2', 'w|bz2', the *compresslevel* doesn't make sense. It seems not hard to make it possible but I'm not sure it's worth it or there is any reason it's hard-coded.

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nosy: +xiang.zhang

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