Fix CI

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: python:3.6
+image: python:3.8
 
 stages:
   - test
@@ -21,6 +21,11 @@ python37:
   stage: test
   script: tox -e py37
 
+python38:
+  image: python:3.8
+  stage: test
+  script: tox -e py37
+
 linters:
   stage: test
   script: tox -e linters

media/forms.py

@@ -198,7 +198,7 @@ class MediaAdminForm(ModelForm):
             from django.core.exceptions import ValidationError
             try:
                 # We don't want to check a field when we enter an ISBN.
-                if "isbn" not in self.request.POST \
+                if "_isbn" not in self.request.POST \
                         or not self.cleaned_data.get('isbn'):
                     value = field.clean(value)
                 self.cleaned_data[name] = value

media/tests/test_templates.py

@@ -47,7 +47,7 @@ class TemplateTests(TestCase):
 
     def test_media_isbn_download(self):
         data = {
-            '_continue': True,
+            '_isbn': True,
             'isbn': "0316358525",
         }
         response = self.client.post(reverse(