Python3 update

INCR-471

lms/djangoapps/certificates/api.py

@@ -4,11 +4,15 @@ This is a Python API for generating certificates asynchronously.
 Other Django apps should use the API functions defined in this module
 rather than importing Django models directly.
 """
+from __future__ import absolute_import
+
 import logging
 
+import six
 from django.conf import settings
-from django.urls import reverse
 from django.db.models import Q
+from django.urls import reverse
+from eventtracking import tracker
 from opaque_keys.edx.django.models import CourseKeyField
 from opaque_keys.edx.keys import CourseKey
 
@@ -25,7 +29,6 @@ from lms.djangoapps.certificates.models import (
     certificate_status_for_student
 )
 from lms.djangoapps.certificates.queue import XQueueCertInterface
-from eventtracking import tracker
 from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
 from util.organizations_helpers import get_course_organization_id
 from xmodule.modulestore.django import modulestore
@@ -193,7 +196,7 @@ def generate_user_certificates(student, course_key, course=None, insecure=False,
     if CertificateStatuses.is_passing_status(cert.status):
         emit_certificate_event('created', student, course_key, course, {
             'user_id': student.id,
-            'course_id': unicode(course_key),
+            'course_id': six.text_type(course_key),
             'certificate_id': cert.verify_uuid,
             'enrollment_mode': cert.mode,
             'generation_mode': generation_mode
@@ -231,7 +234,7 @@ def regenerate_user_certificates(student, course_key, course=None,
     generate_pdf = not has_html_certificates_enabled(course)
     log.info(
         u"Started regenerating certificates for user %s in course %s with generate_pdf status: %s",
-        student.username, unicode(course_key), generate_pdf
+        student.username, six.text_type(course_key), generate_pdf
     )
 
     return xqueue.regen_cert(
@@ -306,12 +309,12 @@ def set_cert_generation_enabled(course_key, is_enabled):
     cert_event_type = 'enabled' if is_enabled else 'disabled'
     event_name = '.'.join(['edx', 'certificate', 'generation', cert_event_type])
     tracker.emit(event_name, {
-        'course_id': unicode(course_key),
+        'course_id': six.text_type(course_key),
     })
     if is_enabled:
-        log.info(u"Enabled self-generated certificates for course '%s'.", unicode(course_key))
+        log.info(u"Enabled self-generated certificates for course '%s'.", six.text_type(course_key))
     else:
-        log.info(u"Disabled self-generated certificates for course '%s'.", unicode(course_key))
+        log.info(u"Disabled self-generated certificates for course '%s'.", six.text_type(course_key))
 
 
 def is_certificate_invalid(student, course_key):
@@ -436,7 +439,7 @@ def _certificate_html_url(user_id, course_id, uuid):
     if uuid:
         return reverse('certificates:render_cert_by_uuid', kwargs={'certificate_uuid': uuid})
     elif user_id and course_id:
-        kwargs = {"user_id": str(user_id), "course_id": unicode(course_id)}
+        kwargs = {"user_id": str(user_id), "course_id": six.text_type(course_id)}
         return reverse('certificates:html_view', kwargs=kwargs)
     return ''
 
@@ -452,7 +455,7 @@ def _certificate_download_url(user_id, course_id, user_certificate=None):
             log.critical(
                 u'Unable to lookup certificate\n'
                 u'user id: %d\n'
-                u'course: %s', user_id, unicode(course_id)
+                u'course: %s', user_id, six.text_type(course_id)
             )
 
     if user_certificate:
@@ -589,11 +592,11 @@ def emit_certificate_event(event_name, user, course_id, course=None, event_data=
         course = modulestore().get_course(course_id, depth=0)
     context = {
         'org_id': course.org,
-        'course_id': unicode(course_id)
+        'course_id': six.text_type(course_id)
     }
     data = {
         'user_id': user.id,
-        'course_id': unicode(course_id),
+        'course_id': six.text_type(course_id),
         'certificate_url': get_certificate_url(user.id, course_id)
     }
     event_data = event_data or {}

lms/djangoapps/certificates/apps.py

@@ -4,6 +4,8 @@ Certificates Application Configuration
 Signal handlers are connected here.
 """
 
+from __future__ import absolute_import
+
 from django.apps import AppConfig
 from django.conf import settings
 from edx_proctoring.runtime import set_runtime_service

lms/djangoapps/certificates/services.py

@@ -1,12 +1,15 @@
 """
 Certificate service
 """
+from __future__ import absolute_import
+
 import logging
 
 from django.core.exceptions import ObjectDoesNotExist
-from lms.djangoapps.utils import _get_key
 from opaque_keys.edx.keys import CourseKey
 
+from lms.djangoapps.utils import _get_key
+
 from .models import GeneratedCertificate
 
 log = logging.getLogger(__name__)

lms/djangoapps/certificates/signals.py

@@ -1,16 +1,20 @@
 """
 Signal handler for enabling/disabling self-generated certificates based on the course-pacing.
 """
+from __future__ import absolute_import
+
 import logging
 
+import six
 from django.db.models.signals import post_save
 from django.dispatch import receiver
 
+from course_modes.models import CourseMode
 from lms.djangoapps.certificates.models import (
     CertificateGenerationCourseSetting,
+    CertificateStatuses,
     CertificateWhitelist,
-    GeneratedCertificate,
-    CertificateStatuses
+    GeneratedCertificate
 )
 from lms.djangoapps.certificates.tasks import generate_certificate
 from lms.djangoapps.grades.api import CourseGradeFactory
@@ -18,13 +22,13 @@ from lms.djangoapps.verify_student.services import IDVerificationService
 from openedx.core.djangoapps.certificates.api import auto_certificate_generation_enabled
 from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
 from openedx.core.djangoapps.content.course_overviews.signals import COURSE_PACING_CHANGED
-from openedx.core.djangoapps.signals.signals import (COURSE_GRADE_NOW_PASSED,
-                                                     LEARNER_NOW_VERIFIED,
-                                                     COURSE_GRADE_NOW_FAILED)
-from course_modes.models import CourseMode
+from openedx.core.djangoapps.signals.signals import (
+    COURSE_GRADE_NOW_FAILED,
+    COURSE_GRADE_NOW_PASSED,
+    LEARNER_NOW_VERIFIED
+)
 from student.models import CourseEnrollment
 
-
 log = logging.getLogger(__name__)
 CERTIFICATE_DELAY_SECONDS = 2
 
@@ -158,10 +162,10 @@ def fire_ungenerated_certificate_task(user, course_key, expected_verification_st
 
     if generate_learner_certificate:
         kwargs = {
-            'student': unicode(user.id),
-            'course_key': unicode(course_key)
+            'student': six.text_type(user.id),
+            'course_key': six.text_type(course_key)
         }
         if expected_verification_status:
-            kwargs['expected_verification_status'] = unicode(expected_verification_status)
+            kwargs['expected_verification_status'] = six.text_type(expected_verification_status)
         generate_certificate.apply_async(countdown=CERTIFICATE_DELAY_SECONDS, kwargs=kwargs)
         return True

lms/djangoapps/instructor_task/migrations/0001_initial.py

@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
-from __future__ import unicode_literals
+from __future__ import absolute_import, unicode_literals
 
-from django.db import migrations, models
 from django.conf import settings
+from django.db import migrations, models
 from opaque_keys.edx.django.models import CourseKeyField
 
 

lms/djangoapps/instructor_task/migrations/0002_gradereportsetting.py

@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
-from __future__ import unicode_literals
+from __future__ import absolute_import, unicode_literals
 
-from django.db import migrations, models
 import django.db.models.deletion
 from django.conf import settings
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):