Django3 has removed python_2_unicode_compatible.

Execute the codemodes on this file and removed all usage.

cms/djangoapps/course_creators/models.py

@@ -8,7 +8,7 @@ from django.db import models
 from django.db.models.signals import post_init, post_save
 from django.dispatch import Signal, receiver
 from django.utils import timezone
-from django.utils.encoding import python_2_unicode_compatible
+
 from django.utils.translation import ugettext_lazy as _
 
 # A signal that will be sent when users should be added or removed from the creator group
@@ -19,9 +19,6 @@ send_admin_notification = Signal(providing_args=["user"])
 
 # A signal that will be sent when user should be notified of change in course creator privileges
 send_user_notification = Signal(providing_args=["user", "state"])
-
-
-@python_2_unicode_compatible
 class CourseCreator(models.Model):
     """
     Creates the database table model.

cms/lib/xblock/tagging/models.py

@@ -4,10 +4,7 @@ Django Model for tags
 
 
 from django.db import models
-from django.utils.encoding import python_2_unicode_compatible
 
-
-@python_2_unicode_compatible
 class TagCategories(models.Model):
     """
     This model represents tag categories.
@@ -33,7 +30,6 @@ class TagCategories(models.Model):
         return [t.value for t in TagAvailableValues.objects.filter(category=self)]
 
 
-@python_2_unicode_compatible
 class TagAvailableValues(models.Model):
     """
     This model represents available values for tags.