Old style exceptions --> new style for Python 3

lms/djangoapps/courseware/management/commands/tests/test_dump_course.py

@@ -97,7 +97,7 @@ class CommandsTestBase(SharedModuleStoreTestCase):
 
         try:
             output = self.call_command('dump_course_structure', *args, **kwargs)
-        except TypeError, exception:
+        except TypeError as exception:
             self.fail(exception)
 
         dump = json.loads(output)

lms/djangoapps/courseware/module_render.py

@@ -285,7 +285,7 @@ def _add_timed_exam_info(user, course, section, section_context):
                 unicode(course.id),
                 unicode(section.location)
             )
-        except Exception, ex:  # pylint: disable=broad-except
+        except Exception as ex:  # pylint: disable=broad-except
             # safety net in case something blows up in edx_proctoring
             # as this is just informational descriptions, it is better
             # to log and continue (which is safe) than to have it be an