new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  import django.core.validators
  import oscar.core.validators
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('catalogue', '0007_auto_20151207_1440'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='productattribute',
              name='code',
              field=models.SlugField(max_length=128, verbose_name='Code', validators=[django.core.validators.RegexValidator(regex=b'^[a-zA-Z_][0-9a-zA-Z_]*$', message="Code can only contain the letters a-z, A-Z, digits, and underscores, and can't start with a digit."), oscar.core.validators.non_python_keyword]),
          ),
      ]
  
subject: Add missing migrations