err, wrong quote! Below was reply to this part of your email:
However, did you notice that oslo.log also claims to require
python-dateutil>=2.7.0
yes, Yatin and I had a chat the other day [1]
conclusion was "we got lucky until cloudkitty" :)
[1]
http://eavesdrop.openstack.org/irclogs/%23rdo/%23rdo.2020-08-19.log.html#...