from django.db import migrations, models class Migration(migrations.Migration): dependencies = [ ('course', '0029_flowaccessexception_is_sticky'), ] operations = [ migrations.AlterField( model_name='flowsession', name='expiration_mode', field=models.CharField(default='end', max_length=20, null=True, choices=[(b'end', b'End session and grade'), (b'roll_over', b'Keep session and apply new rules')]), ), ]