[issue12707] Deprecate addinfourl getters

[Ashwin Ramaswami]

Change by Ashwin Ramaswami <aramaswamis at gmail.com>:


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keywords: +patch, patch
pull_requests: +10905, 10906
stage: needs patch -> patch review

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue12707>
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