When I run
python manage.py runserver
I get this error
File \"/usr/local/lib/python2.7/dist-packages/Django-1.10.1-py2.7.egg/django
I had the same problem, just solved it. Make sure www-data (or whatever daemon running your web server) has access to both the db.sqlite3 file, and also the path to it. So:
sudo chown :www-data / sudo chown :www-data /db.sqlite3 sudo chmod 664 /db.sqlite3