= all tests
./manage.py test image.tests

= coverage
coverage run --source='.' manage.py test image.tests
coverage html
coverage reports
coverage erase

= silk
INSTALLED_APPS
    'silk',
MIDDLEWARE
    'silk.middleware.SilkyMiddleware',
    urlpatterns += [url(r'^silk/', include('silk.urls', namespace='silk'))]

http://localhost:8000/silk/

from silk.profiling.profiler import silk_profile

@silk_profile(name='View Blog Post')

and,

python manage.py silk_clear_request_log
