[issue3978] ZipFileExt.read() can be incredibly slow; patch included

[James Athey]

Changes by James Athey <james.athey at gmail.com>:


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title: ZipFileExt.read() can be incredibly slow -> ZipFileExt.read() can be incredibly slow; patch included

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3978>
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