BIG UPD: migrate to python 3.10 and django 3.2

dav_events/models/eventstatus.py

@@ -1,6 +1,5 @@
 from __future__ import unicode_literals
 from django.db import models
-from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
 from ..validators import IdStringValidator
@@ -22,7 +21,6 @@ BOOTSTRAP_CONTEXT_CHOICES = (
 )
 
 
-@python_2_unicode_compatible
 class EventStatus(models.Model):
     code = models.CharField(primary_key=True, max_length=254, validators=[IdStringValidator])
     severity = models.IntegerField(unique=True)