* The original use of user.has_perm('can_take_proctored_exam') in the get_active_enrollments_for_course method had very poor performance when used for multiple learners. The permission is not designed for use in bulk operations. It was being called for each user in a loop by edx-proctoring, resulting in many queries to the database. This lead to timeouts on the client. This change exposes a new service endpoint that performs this permission checking in the database, resulting in one single query to the necessary LMS SQL tables and many fewer queries to the modulestore.
* bump version of edx-proctoring to 3.7.3
These directories specify the Python (and system) dependencies for the LMS and Studio. - ``edx`` contains the normal Python requirements files - ``edx-sandbox`` contains the requirements files for Codejail - ``constraints.txt`` is shared between the two (In a normal `OEP-18`_-compliant repository, the ``*.in`` and ``*.txt`` files would be directly in the requirements directory.) .. _OEP-18: https://github.com/edx/open-edx-proposals/blob/master/oeps/oep-0018-bp-python-dependencies.rst