[issue4972] context managerment support in imaplib, smtplib, ftplib

[Éric Araujo]

Changes by Éric Araujo <merwok at netwok.org>:


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stage:  -> needs patch
title: let's equip ftplib.FTP with __enter__ and __exit__ -> context managerment support in imaplib, smtplib, ftplib

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4972>
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