[py3] Refactored __unicode__ to __str__.

* Renamed the __unicode__ methods
* Applied the python_2_unicode_compatible decorator
* Removed the StrAndUnicode mix-in that is superseded by
  python_2_unicode_compatible
* Kept the __unicode__ methods in classes that specifically
  test it under Python 2

1 files changed, 5 insertions, 2 deletions

diff --git a/tests/regressiontests/inline_formsets/models.py b/tests/regressiontests/inline_formsets/models.py
index d76eea758b..40c85fe739 100644
--- a/tests/regressiontests/inline_formsets/models.py
+++ b/tests/regressiontests/inline_formsets/models.py
@@ -1,5 +1,6 @@
 # coding: utf-8
 from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
 
 
 class School(models.Model):
@@ -14,15 +15,17 @@ class Child(models.Model):
     school = models.ForeignKey(School)
     name = models.CharField(max_length=100)
 
+@python_2_unicode_compatible
 class Poet(models.Model):
     name = models.CharField(max_length=100)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
+@python_2_unicode_compatible
 class Poem(models.Model):
     poet = models.ForeignKey(Poet)
     name = models.CharField(max_length=100)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name