django2.2: relpace django.core.urlresolvers by django.urls

forum/models.py

@@ -26,7 +26,7 @@ from django.db import models
 from django.conf import settings
 from django.utils.translation import ugettext_lazy as _
 from django.core.exceptions import ValidationError
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 from django.utils import timezone
 from django.utils.functional import cached_property
 

forum/views.py

@@ -28,7 +28,7 @@ from django.views.generic import ListView, DetailView, RedirectView
 from django.views.generic.edit import UpdateView, CreateView, DeleteView
 from django.views.generic.detail import SingleObjectMixin
 from django.utils.translation import ugettext_lazy as _
-from django.core.urlresolvers import reverse_lazy
+from django.urls import reverse_lazy
 from django.utils import timezone, html
 from django.conf import settings
 from django import forms