Python 2.6 compatibility - fixes #156

.travis.yml

@@ -13,7 +13,7 @@ services:
 install:
   - python setup.py install
   - pip install psycopg2 pyelasticsearch elasticutils==0.8.2 wand
-  - pip install coveralls
+  - pip install coveralls unittest2
 # Pre-test configuration
 before_script:
   - psql -c 'create database wagtaildemo;' -U postgres

requirements-dev.txt

@@ -1,5 +1,7 @@
 # Requirements essential for developing wagtail (not needed to run it)
 
+unittest2==0.5.1
+
 # For coverage and PEP8 linting
 coverage==3.7.1
 flake8==2.1.0

tox.ini

@@ -1,26 +1,46 @@
+[deps]
+dj16=
+    Django>=1.6,<1.7
+    pyelasticsearch==0.6.1
+    elasticutils==0.8.2
+    unittest2
+
 [tox]
 envlist =
+    py26-dj16-postgres,
+    py26-dj16-sqlite,
     py27-dj16-postgres,
     py27-dj16-sqlite
 
 [testenv]
 commands=./runtests.py
 
+[testenv:py26-dj16-postgres]
+basepython=python2.6
+deps =
+    {[deps]dj16}
+    psycopg2==2.5.2
+setenv =
+    DATABASE_ENGINE=django.db.backends.postgresql_psycopg2
+
+[testenv:py26-dj16-sqlite]
+basepython=python2.6
+deps =
+    {[deps]dj16}
+setenv =
+    DATABASE_ENGINE=django.db.backends.sqlite3
+
 [testenv:py27-dj16-postgres]
 basepython=python2.7
 deps =
-    Django>=1.6,<1.7
+    {[deps]dj16}
     psycopg2==2.5.2
-    pyelasticsearch==0.6.1
-    elasticutils==0.8.2
 setenv =
     DATABASE_ENGINE=django.db.backends.postgresql_psycopg2
 
 [testenv:py27-dj16-sqlite]
 basepython=python2.7
 deps =
-    Django>=1.6,<1.7
-    pyelasticsearch==0.6.1
-    elasticutils==0.8.2
+    {[deps]dj16}
 setenv =
     DATABASE_ENGINE=django.db.backends.sqlite3

wagtail/wagtailadmin/forms.py

@@ -12,7 +12,7 @@ class SearchForm(forms.Form):
         if _placeholder is not None:
             placeholder = _placeholder
         else:
-            placeholder = 'Search {}'.format(placeholder_suffix)
+            placeholder = 'Search {0}'.format(placeholder_suffix)
         self.fields['q'].widget.attrs = {'placeholder': placeholder}
 
     q = forms.CharField(label=_("Search term"), widget=forms.TextInput())

wagtail/wagtailadmin/hooks.py

@@ -1,5 +1,9 @@
 from django.conf import settings
-from django.utils.importlib import import_module
+try:
+    from importlib import import_module
+except ImportError:
+    # for Python 2.6, fall back on django.utils.importlib (deprecated as of Django 1.7)
+    from django.utils.importlib import import_module
 
 _hooks = {}
 

wagtail/wagtailadmin/tests.py

@@ -1,5 +1,5 @@
 from django.test import TestCase
-import unittest
+import unittest2 as unittest
 from wagtail.tests.models import SimplePage, EventPage
 from wagtail.tests.utils import login
 from wagtail.wagtailcore.models import Page

wagtail/wagtailembeds/embeds.py

@@ -1,5 +1,11 @@
 import sys
-from importlib import import_module
+
+try:
+    from importlib import import_module
+except ImportError:
+    # for Python 2.6, fall back on django.utils.importlib (deprecated as of Django 1.7)
+    from django.utils.importlib import import_module
+
 from django.conf import settings
 from datetime import datetime
 from django.utils import six

wagtail/wagtailimages/backends/__init__.py

@@ -2,7 +2,12 @@
 # Based on the Django cache framework and wagtailsearch
 # https://github.com/django/django/blob/5d263dee304fdaf95e18d2f0619d6925984a7f02/django/core/cache/__init__.py
 
-from importlib import import_module
+try:
+    from importlib import import_module
+except ImportError:
+    # for Python 2.6, fall back on django.utils.importlib (deprecated as of Django 1.7)
+    from django.utils.importlib import import_module
+
 from django.utils import six
 import sys
 from django.conf import settings

wagtail/wagtailimages/formats.py

@@ -1,7 +1,12 @@
 from django.conf import settings
-from django.utils.importlib import import_module
 from django.utils.html import escape
 
+try:
+    from importlib import import_module
+except ImportError:
+    # for Python 2.6, fall back on django.utils.importlib (deprecated as of Django 1.7)
+    from django.utils.importlib import import_module
+
 
 class Format(object):
     def __init__(self, name, label, classnames, filter_spec):

wagtail/wagtailimages/tests.py

@@ -4,7 +4,7 @@ from django.contrib.auth.models import User, Group, Permission
 from django.core.urlresolvers import reverse
 from django.core.files.uploadedfile import SimpleUploadedFile
 
-import unittest
+import unittest2 as unittest
 
 from wagtail.tests.utils import login
 from wagtail.wagtailimages.models import get_image_model

wagtail/wagtailredirects/views.py

@@ -109,7 +109,7 @@ def add(request):
             theredirect.site = request.site
             theredirect.save()
 
-            messages.success(request, _("Redirect '{0} added.").format(theredirect.title))
+            messages.success(request, _("Redirect '{0}' added.").format(theredirect.title))
             return redirect('wagtailredirects_index')
         else:
             messages.error(request, _("The redirect could not be created due to errors."))

wagtail/wagtailsearch/backends/__init__.py

@@ -2,7 +2,12 @@
 # Based on the Django cache framework
 # https://github.com/django/django/blob/5d263dee304fdaf95e18d2f0619d6925984a7f02/django/core/cache/__init__.py
 
-from importlib import import_module
+try:
+    from importlib import import_module
+except ImportError:
+    # for Python 2.6, fall back on django.utils.importlib (deprecated as of Django 1.7)
+    from django.utils.importlib import import_module
+
 from django.utils import six
 import sys
 from django.conf import settings

wagtail/wagtailsearch/backends/elasticsearch.py

@@ -37,7 +37,7 @@ class ElasticSearchResults(object):
                 results = results.prefetch_related(prefetch)
 
             # Put results into a dictionary (using primary key as the key)
-            results_dict = {str(result.pk): result for result in results}
+            results_dict = dict((str(result.pk), result) for result in results)
 
             # Build new list with items in the correct order
             results_sorted = [results_dict[str(pk)] for pk in pk_list if str(pk) in results_dict]

wagtail/wagtailsearch/indexed.py

@@ -40,7 +40,7 @@ class Indexed(object):
         if isinstance(indexed_fields, basestring):
             indexed_fields = [indexed_fields]
         if isinstance(indexed_fields, list):
-            indexed_fields = {field: dict(type="string") for field in indexed_fields}
+            indexed_fields = dict((field, dict(type="string")) for field in indexed_fields)
         if not isinstance(indexed_fields, dict):
             raise ValueError()
 

wagtail/wagtailsearch/tests/test_backends.py

@@ -2,7 +2,7 @@ from django.test import TestCase
 from django.test.utils import override_settings
 from django.conf import settings
 from django.core import management
-import unittest
+import unittest2 as unittest
 from wagtail.wagtailsearch import models, get_search_backend
 from wagtail.wagtailsearch.backends.db import DBSearch
 from wagtail.wagtailsearch.backends import InvalidSearchBackendError

wagtail/wagtailsearch/tests/test_queries.py

@@ -3,7 +3,7 @@ from django.core import management
 from wagtail.wagtailsearch import models
 from wagtail.tests.utils import login
 from StringIO import StringIO
-import unittest
+import unittest2 as unittest
 
 
 class TestHitCounter(TestCase):

wagtail/wagtailsearch/views/frontend.py

@@ -73,11 +73,11 @@ def search(
             for result in search_results:
                 result_specific = result.specific
 
-                search_results_json.append({
-                    attr: getattr(result_specific, attr)
+                search_results_json.append(dict(
+                    (attr, getattr(result_specific, attr))
                     for attr in json_attrs
                     if hasattr(result_specific, attr)
-                })
+                ))
 
             return HttpResponse(json.dumps(search_results_json))
         else:

wagtail/wagtailsnippets/tests.py

@@ -5,7 +5,7 @@ when you run "manage.py test".
 Replace this with more appropriate tests for your application.
 """
 
-import unittest
+import unittest2 as unittest
 
 from django.test import TestCase