[issue31855] mock_open is not compatible with read(n) (and pickle.load)

[Raymond Hettinger]

Change by Raymond Hettinger <raymond.hettinger at gmail.com>:


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assignee:  -> michael.foord
nosy: +michael.foord

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31855>
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