Hi, I'm just updating salutatoi and it needs python-dateutil (still Python 2!) >= 2.7.3, it seems. Therefore, #907718 must be solved in time for buster. Also, there is a new upstream version 2.8.0, which seems to fix a lot of bugs¹.
TIA & Cheers ¹ https://dateutil.readthedocs.io/en/stable/changelog.html#version-2-8-0-2019-02-04
