[docs] [issue15013] smtplib: add low-level APIs to doc?

Maciej Urbański added the comment: I guess documenting `data` method may still be needed after all. For now I followed the suggestions from comments to best of my ability. Please see attached patch. ---------- keywords: +patch nosy: +rooter Added file: http://bugs.python.org/file45086/issue15013.patch _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue15013> _______________________________________