Example of pre-defined data before migrarion.

load.py

# -*- coding: utf-8 -*-
# Generated by Django 1.11 on 2018-01-22 17:31
"""Load data using py and sqlq

...
"""
from __future__ import unicode_literals

from django.db import migrations

def load_users(apps, schema_editor):
	#user = User(..)
	#user.save()
    pass

def delete_users(apps, schema_editor):
	#Users = app.get_model(...HELP!!)
	#Users.object.all().delete()
    pass

def load_users_from_sql():
	#return sql_statments
    pass

def delete_users_from_sql():
	#return sql_statments
    pass

class Migration(migrations.Migration):

    dependencies = [
        ('userauth', '0001_squashed_0002_auto_20180120_1828'),
    ]

    operations = [
    	# 1st arg - function to run
    	# 2nd arg - funtcion to run if rollback happens
    	#migrations.RunPython(load_users, delete_users),
    	#migrations.RunSQL(load_user_from_sql(), delete_users_from_sql())
    ]