[issue36491] sum function's start optional parameter documented in help but not implemented

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan <tir.karthi at gmail.com>:


----------
superseder:  -> Make *start* usable as a keyword argument for sum().

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36491>
_______________________________________