[issue27701] [posixmodule] [Refactoring patch] Simply call into *at() functions unconditionally when present

[Stéphane Wirtel]

Changes by Stéphane Wirtel <stephane at wirtel.be>:


----------
nosy: +matrixise

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27701>
_______________________________________