[issue3112] implement PEP 3134 exception reporting

[Benjamin Peterson]

New submission from Benjamin Peterson <musiccomposition at gmail.com>:

Traceback reporting needs to be altered to support exception chaining as
per PEP 3134.

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components: Interpreter Core
messages: 68214
nosy: benjamin.peterson
priority: critical
severity: normal
status: open
title: implement PEP 3134 exception reporting
type: feature request
versions: Python 2.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3112>
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