[issue21955] ceval.c: implement fast path for integers with a single digit

[Zach Byrne]

Zach Byrne added the comment:

> Could you please take a look at the updated patch?
Looks ok to me, for whatever that's worth.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21955>
_______________________________________