New submission from Antoine Pitrou <[EMAIL PROTECTED]>:
The problem is with the `shape` member which doesn't get recalculated as
it should when instantiating a memoryview slice:
>>> a = array('i', range(10))
>>> m = memoryview(a)[2:8]
>>> a
array('i', [0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
>>> m[:] = array('i', range(6))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: cannot modify size of memoryview object
>>> len(m)
6
>>> m.shape
(10,)
An additional problem is that `shape` is a pointer to an array of
integers, and we don't know how to reallocate it.
----------
components: Interpreter Core
messages: 77248
nosy: pitrou
priority: high
severity: normal
stage: test needed
status: open
title: slicing of memoryviews when itemsize != 1 is wrong
type: behavior
versions: Python 3.0, Python 3.1
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Python tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue4580>
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