[issue1501108] Add write buffering to gzip

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Although the script does not work as-is (missing import of "string",
typo between "frags" and "wfrags"), I can conform the 3x ratio.

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nosy: +pitrou

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1501108>
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