Added support for Python 2.6 and removed support for django HEAD

.travis.yml

@@ -3,12 +3,8 @@ python:
   - "2.7"
   - "2.6"
 install:
-  - pip install --no-deps -e .
+  - pip install -q -e .
   - pip install -q --use-mirrors -r requirements-testing.txt
-  - pip install -q --use-mirrors -U $DJANGO_VERSION
 script:
   - coverage run --branch --source=simpleimages -m django-mini -a simpleimages -a simpleimages.test --test-runner 'discover_runner.DiscoverRunner' test
   - coveralls
-env:
-  - DJANGO_VERSION="django>=1.5,<1.6"
-  - DJANGO_VERSION="git+git://github.com/django/django.git@master"

simpleimages/management/commands/retransform.py

@@ -12,13 +12,13 @@ class Command(BaseCommand):
 
     def handle(self, *args, **options):
         for arg in args:
-            self.stdout.write('Transforming {}'.format(arg))
+            self.stdout.write('Transforming {0}'.format(arg))
             arg_values = arg.split('.')
             arg_values.extend(repeat(None, 3 - len(arg_values)))
             app_name, model_name, field_name = arg_values
             model = get_model(app_name, model_name)
             instances = model._default_manager.all()
-            self.stdout.write('Transforming {}.{}'.format(instances, field_name))
+            self.stdout.write('Transforming {0}.{1}'.format(instances, field_name))
 
             utils.perform_transformation(
                 instances=instances,

simpleimages/transforms.py

@@ -25,7 +25,7 @@ def scale_image_function(django_file):
 def pil_image_from_django_file(django_file):
     if not isinstance(django_file, File):
         raise TypeError(
-            'image is a {}, not a django File'.format(type(django_file))
+            'image is a {0}, not a django File'.format(type(django_file))
         )
     if not django_file.file:
         raise ValueError(
@@ -38,7 +38,7 @@ def pil_image_from_django_file(django_file):
 def django_file_from_pil_image(transformed_pil_image, file_name):
     if not isinstance(transformed_pil_image, Image.Image):
         raise TypeError(
-            'image is a {}, not a PIL Image'.format(type(transformed_pil_image))
+            'image is a {0}, not a PIL Image'.format(type(transformed_pil_image))
         )
     temp_io = StringIO()
     transformed_pil_image.save(temp_io, format='JPEG')