Change initial migration writing to work as docs suggest.

import re

import os

import sys

from django.utils import datetime_safe

from django.utils import datetime_safe, importlib

from django.utils.six.moves import input

from django.db.migrations import operations

from django.db.migrations.migration import Migration

    def ask_initial(self, app_label):

        "Should we create an initial migration for the app?"

        # Don't ask for django.contrib apps

        app = cache.get_app(app_label)

        if app.__name__.startswith("django.contrib"):

            return False

        # If it was specified on the command line, definitely true

        if app_label in self.specified_apps:

            return True

        # Now ask

        return self._boolean_input("Do you want to enable migrations for app '%s'? [y/N]" % app_label, False)

        # Otherwise, we look to see if it has a migrations module

        # without any Python files in it, apart from __init__.py.

        # Apps from the new app template will have these; the python

        # file check will ensure we skip South ones.

        models_module = cache.get_app(app_label)

        migrations_import_path = "%s.migrations" % models_module.__package__

        try:

            migrations_module = importlib.import_module(migrations_import_path)

        except ImportError:

            return False

        else:

            filenames = os.listdir(os.path.dirname(migrations_module.__file__))

            return not any(x.endswith(".py") for x in filenames if x != "__init__.py")

    def ask_not_null_addition(self, field_name, model_name):

        "Adding a NOT NULL field to a model"