Fix tests for Python < 2.6
Fix tests for Python < 2.6

glic3rinu/django-admin-tools,artscoop/django-admin-tools,glic3rinu/django-admin-tools,artscoop/django-admin-tools,artscoop/django-admin-tools,glic3rinu/django-admin-tools,artscoop/django-admin-tools,glic3rinu/django-admin-tools