New submission from Benjamin Peterson <benja...@python.org>:

This patch condenses the many current opcodes used to start a with
statement into one, SETUP_WITH. I originally did this to properly lookup
__enter__ and __exit__ as special methods. However, the patch also has
the nice side effect of removing the need for a temporary variable.

----------
assignee: benjamin.peterson
components: Interpreter Core
files: SETUP_WITH.patch
keywords: patch
messages: 88293
nosy: benjamin.peterson
priority: normal
severity: normal
status: open
title: SETUP_WITH
type: performance
versions: Python 2.7, Python 3.2
Added file: http://bugs.python.org/file14060/SETUP_WITH.patch

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<http://bugs.python.org/issue6101>
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