[issue7610] Cannot use both read and readline method in same ZipExtFile object

[Nir Aides]

Nir Aides <nir at winpdb.org> added the comment:

Right, I was reading the 3.1 docs by mistake.

I updated the patch. This time universal newlines are supported.

On my dataset (75MB 650K lines log file) the readline() speedup is x40 for 'r' mode and x8 for 'rU' mode, and you can get an extra bump by using the io module wrappers.

I added tests for interleaved use of readline() and read() (which add ~2 seconds to running time)

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Added file: http://bugs.python.org/file15739/zipfile_7610_py27.diff

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