[issue28638] Optimize namedtuple creation

[Raymond Hettinger]

Raymond Hettinger added the comment:

>  it would be *nice* to not only optimization the creation 
> but also attribute access by name

FWIW, once the property/itemgetter pair are instantiated in the NT class, the actual lookup runs through them at C speed (no pure python steps).  There is not much fluff here.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28638>
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