Serhiy Storchaka added the comment:
array's constructor interprets its second memoryview argument as an iterable of
integers.
>>> import array
>>> array.array('h', b'abcd')
array('h', [25185, 25699])
>>> array.array('h', memoryview(b'abcd'))
array('h', [97, 98, 99, 100])
array.frombytes() always interpret its argument as bytes-like object.
>>> a = array.array('h')
>>> a.frombytes(memoryview(b'abcd'))
>>> a
array('h', [25185, 25699])
First patch fixes only a half of the issue. test_unseekable_incompleted_write()
still failed because array.fromfile() fails read incomplete data. Second patch
also adds unittest.expectedFailure decorators for these tests.
----------
Added file: http://bugs.python.org/file32680/wave_byteswap_2.patch
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<http://bugs.python.org/issue19633>
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