code: def get_submissions_for_student_item(request, course_id, student_id, item_id):
      
      student_item_dict = dict(
          course_id=course_id,
          student_id=student_id,
          item_id=item_id,
      )
      context = dict(**student_item_dict)
      try:
          submissions = get_submissions(student_item_dict)
          context["submissions"] = submissions
      except SubmissionRequestError:
          context["error"] = "The specified student item was not found."
  
      return render_to_response('submissions.html', context)
docs: Retrieve all submissions associated with the given student item.
  
      Developer utility for accessing all the submissions associated with a
      student item. The student item is specified by the unique combination of
      course, student, and item.
  
      Args:
          request (dict): The request.
          course_id (str): The course id for this student item.
          student_id (str): The student id for this student item.
          item_id (str): The item id for this student item.
  
      Returns:
          HttpResponse: The response object for this request. Renders a simple
              development page with all the submissions related to the specified
              student item.