[docs] [issue17040] Document context manager support for shelf objects

[Berker Peksag]

New submission from Berker Peksag:

Context manager support for shelf objects was added in issue 13896, but not documented.

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assignee: docs at python
components: Documentation
files: shelve-context-manager-doc.diff
keywords: patch
messages: 180667
nosy: asvetlov, berker.peksag, docs at python
priority: normal
severity: normal
status: open
title: Document context manager support for shelf objects
versions: Python 3.4
Added file: http://bugs.python.org/file28843/shelve-context-manager-doc.diff

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17040>
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