[issue9757] Add context manager protocol to memoryviews

[Antoine Pitrou]

New submission from Antoine Pitrou <pitrou at free.fr>:

This adds the context manager protocol to memoryview objects, as proposed on python-dev. Once the `with` block has finished, the underlying buffer is released and any operation on the memoryview raises a ValueError.

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components: Interpreter Core
files: memcontext.patch
keywords: patch
messages: 115459
nosy: pitrou
priority: normal
severity: normal
stage: patch review
status: open
title: Add context manager protocol to memoryviews
type: feature request
versions: Python 3.2
Added file: http://bugs.python.org/file18729/memcontext.patch

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<http://bugs.python.org/issue9757>
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