old_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import models, migrations
  import core.models.network
  import timezones.fields
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('core', '0004_auto_20140929_1610'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='network',
              name='ports',
              field=models.CharField(blank=True, max_length=1024, null=True, validators=[core.models.network.ValidateNatList]),
          ),
      ]
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import models, migrations
  import core.models.network
  import timezones.fields
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('core', '0004_auto_20141006_1719'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='network',
              name='ports',
              field=models.CharField(blank=True, max_length=1024, null=True, validators=[core.models.network.ValidateNatList]),
          ),
      ]
  
subject: fix migration dependency problem