Fixed translation bug that caused new migrations to be created when settings.LANGUAGE_CODE is changed

Author: SalvaFiorenza8

essay/models.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 from django.utils.encoding import python_2_unicode_compatible
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from quiz.models import Question
 
 

multichoice/models.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 from django.utils.encoding import python_2_unicode_compatible
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.db import models
 from quiz.models import Question
 

quiz/models.py

@@ -7,7 +7,7 @@
 from django.core.validators import (
     MaxValueValidator, validate_comma_separated_integer_list,
 )
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.utils.timezone import now
 from django.utils.encoding import python_2_unicode_compatible
 from django.conf import settings

quiz/tests.py

@@ -13,6 +13,7 @@
 from django.template import Template, Context
 from django.test import TestCase
 from django.utils.six import StringIO
+from django.utils.translation import ugettext_lazy as _
 
 from .models import Category, Quiz, Progress, Sitting, SubCategory
 from .views import (anon_session_score, QuizListView, CategoriesListView,
@@ -166,7 +167,7 @@ def test_update_score(self):
             self.p1.update_score('hamster', 3, 4)
 
         non_int = self.p1.update_score(question2, '1', 2)
-        self.assertIn('error', str(non_int))
+        self.assertIn(_('error'), non_int)
 
         # negative possible score
         self.p1.update_score(question2, 0, -1)

true_false/models.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 from django.utils.encoding import python_2_unicode_compatible
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.db import models
 from quiz.models import Question