[issue7640] buffered io seek() buggy

[Pascal Chambon]

Pascal Chambon <chambon.pascal at gmail.com> added the comment:

Well, here is a patch for the seek() methods of io module, in python2.6 maintenance branch.
Finally, I've only backported some assertions and the offset stuffs - I'm not comfortable enough about recent io refactorings to do more (it changed pretty quickly while I looked away, actually :p).
Tests have been patched too (bufferedrandom wasn't tested as other buffer classes), and to have the whole suite pass, I had to modify testWriteNonBlocking() as well (mock objects returned wrong values - this test is marked as unreliable in sources anyway).
If more is needed to patch the py2.6 branch, just tell me B-)

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keywords: +patch
Added file: http://bugs.python.org/file15759/seek_cur_buffers_py26.patch

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