ImportError: cannot import name RemovedInDjango19Warning

@MaxRah This is caused by conflicts in Django versions. As mentioned by others, you will have to remove pip uninstall django and reinstall your preferred version: pip install django==1.9 This should resolve the issue.

I was getting this error while trying to use cron-jobs on python (using kronos library)

#getting error while trying to run kronos cron job
python manage.py runtask complain

as @ olivrg metioned this fixed the issue (reinstall django in my case i was using version 1.8.X so i upgraded to 1.9X)

sudo pip uninstall django

sudo pip install django==1.9