Add missing responses import and replace usage of helper.responses with just responses in soc.views.models.student module.
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed
#!/usr/bin/env python
"""
Daily cleanup job.
Can be run as a cronjob to clean out old data from the database (only expired
sessions at the moment).
"""
from django.core import management
if __name__ == "__main__":
management.call_command('cleanup')