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

[Antoine Pitrou]

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

> I am still seeing the same performance as the OP when I use
> extractall() with a password protected ZIP of size 287 MB (containing
> one compressed movie file of size 297 MB).

Please try with a non-password protected file.

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