  from django.urls import (
      NoReverseMatch, RegexURLPattern, RegexURLResolver, Resolver404,
      ResolverMatch, get_callable, get_resolver, resolve, reverse, reverse_lazy,
  )
  from django.utils import six
  
  from . import middleware, urlconf_outer, views
  from .utils import URLObject
  from .views import empty_view
  
 
</s> remove from django.utils import six
 </s> add  </s> remove from django.utils import six
 </s> add  </s> remove from django.utils import six
 </s> add  </s> remove from django.utils import six
 </s> add  </s> remove from django.utils import six
 </s> add 
  from django.urls import (
      NoReverseMatch, RegexURLPattern, RegexURLResolver, Resolver404,
      ResolverMatch, get_callable, get_resolver, resolve, reverse, reverse_lazy,
  )

  
  from . import middleware, urlconf_outer, views
  from .utils import URLObject
  from .views import empty_view
  
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed six.<various>_types usage

Thanks Tim Graham and Simon Charette for the reviews. 
tests/urlpatterns_reverse/tests.py