In general, test-only apps shouldn't be included in production settings files.

Instead, create a settings_test.py that looks something like this:

from settings import *

INSTALLED_APPS += ('esp.seltests','esp.mobiletests')


Then when running tests, do this:

./manage.py test --settings=esp.settings_test

Including the test-only apps in production probably isn't terrible if there are no models, but it's just safer not to.