django.core.urlresolvers was moved to django.urls in version 1.10. This is also needed for Django 1.11, which is still supported.
File "/home/travis/build/owenh000/cartridge/cartridge/shop/models.py", line 10, in <module>
from django.core.urlresolvers import reverse
ImportError: No module named 'django.core.urlresolvers'
django.core.urlresolvers
was moved todjango.urls
in version 1.10. This is also needed for Django 1.11, which is still supported.