get_FOO_display() doesn't work with field named that include underscore

[Viktor Ovsiannikov]

If you try to use a get_FOO_display method on a field that contains underscore, it apparently breaks the syntax and the method doesn't work

[Tim Graham]

The following test passes for me. Please provide details to reproduce.

tests/model_regress/models.py

@@ -11 +11 @@
     status = models.IntegerField(blank=True, null=True, choices=CHOICES)
     misc_data = models.CharField(max_length=100, blank=True)
     article_text = models.TextField()
+    the_status = models.IntegerField(blank=True, null=True, choices=CHOICES)
 
     class Meta:
         ordering = ("pub_date", "headline")

tests/model_regress/tests.py

@@ -56 +56 @@
         # NOTE: Part of the regression test here is merely parsing the model
         # declaration. The verbose_name, in particular, did not always work.
         a = Article.objects.create(
-            headline="Look at me!", pub_date=datetime.datetime.now()
+            headline="Look at me!", pub_date=datetime.datetime.now(), the_status=1,
         )
+        self.assertIs(a.get_the_status_display(), 'first')
         # An empty choice field should return None for the display name.
         self.assertIs(a.get_status_display(), None)