[issue12301] Use :data:`sys.thing` instead of ``sys.thing`` throughout

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

instead of*

An addition: in some cases, it may be on purpose that someone used ``somename`` instead of :func:`somename`, for example to avoid a ton of link in the doc of the somename function.  For the most part however, I believe it was just unawareness (or maybe unavailability) of the :data: construct that explains its absence.

One last precision: markup like ``getattr(spam, ham)`` should stay untouched: it is a code snippet, not just a reference to the function.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12301>
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