[issue43737] Documentation of modulo operator should document behaviour clearly when second operator is negative

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


----------
nosy: +lemburg, mark.dickinson, rhettinger, stutzbach

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43737>
_______________________________________