TangoWithDjango | 5.8 Creating a Population Script | Import Error - django

Question

I'm currently following http://www.tangowithdjango.com/book/chapters/models.html .
On section 5.8 when I execute "python manage.py populate_rango.py" I got this error:
E:\PythonCode\django1\tango_with_django>python populate_rango.py
Starting Rango population script...
Traceback (most recent call last):
File "populate_rango.py", line 61, in <module>
from rango.models import Category, Page
File "E:\PythonCode\django1\tango_with_django\rango\models.py", line 1, in <module>
from django.db import models
File "C:\python27\lib\site-packages\django\db\models\__init__.py", line 5, in <module>
from django.db.models.query import Q
File "C:\python27\lib\site-packages\django\db\models\query.py", line 17, in <m
odule>
from django.db.models.deletion import Collector
File "C:\python27\lib\site-packages\django\db\models\deletion.py", line 4, in
<module>
from django.db.models import signals, sql
File "C:\python27\lib\site-packages\django\db\models\sql\__init__.py", line 4,
in <module>
from django.db.models.sql.subqueries import *
File "C:\python27\lib\site-packages\django\db\models\sql\subqueries.py", line
12, in <module>
from django.db.models.sql.query import Query
File "C:\python27\lib\site-packages\django\db\models\sql\query.py", line 22, i
n <module>
from django.db.models.sql import aggregates as base_aggregates_module
File "C:\python27\lib\site-packages\django\db\models\sql\aggregates.py", line
9, in <module>
ordinal_aggregate_field = IntegerField()
File "C:\python27\lib\site-packages\django\db\models\fields\__init__.py", line
116, in __init__
self.db_tablespace = db_tablespace or settings.DEFAULT_INDEX_TABLESPACE
File "C:\python27\lib\site-packages\django\conf\__init__.py", line 54, in __ge
tattr__
self._setup(name)
File "C:\python27\lib\site-packages\django\conf\__init__.py", line 49, in _set
up
self._wrapped = Settings(settings_module)
File "C:\python27\lib\site-packages\django\conf\__init__.py", line 132, in __i
nit__
% (self.SETTINGS_MODULE, e)
ImportError: Could not import settings 'tango_with_django_project.settings' (Is
it on sys.path? Is there an import error in the settings file?): No module named
tango_with_django_project.settings
Here is the files and directory location E:\PythonCode\django1\tango_with_django>
- manage.py
- populate_rango.py
- tango_with_django [directory]
---- settings.py
---- urls.py
- rango [directory]
---- models.py
models.py
from django.db import models
# Create your models here.
class Category(models.Model):
name = models.CharField(max_length=128, unique=True)
def __unicode__(self):
return self.name
class Page(models.Model):
category = models.ForeignKey(Category)
title = models.CharField(max_length=128)
url = models.URLField()
views = models.IntegerField(default=0)
def __unicode__(self):
return self.title
populate_rango.py
import os
def populate():
python_cat = add_cat('Python')
add_page(cat=python_cat,
title="Official Python Tutorial",
url="http://docs.python.org/2/tutorial/")
add_page(cat=python_cat,
title="How to Think like a Computer Scientist",
url="http://www.greenteapress.com/thinkpython/")
add_page(cat=python_cat,
title="Learn Python in 10 Minutes",
url="http://www.korokithakis.net/tutorials/python/")
django_cat = add_cat("Django")
add_page(cat=django_cat,
title="Official Django Tutorial",
url="https://docs.djangoproject.com/en/1.5/intro/tutorial01/")
add_page(cat=django_cat,
title="Django Rocks",
url="http://www.djangorocks.com/")
add_page(cat=django_cat,
title="How to Tango with Django",
url="http://www.tangowithdjango.com/")
frame_cat = add_cat("Other Frameworks")
add_page(cat=frame_cat,
title="Bottle",
url="http://bottlepy.org/docs/dev/")
add_page(cat=frame_cat,
title="Flask",
url="http://flask.pocoo.org")
# Print out what we have added to the user.
for c in Category.objects.all():
for p in Page.objects.filter(category=c):
print "- {0} - {1}".format(str(c), str(p))
def add_page(cat, title, url, views=0):
p = Page.objects.get_or_create(category=cat, title=title, url=url, views=views)[0]
p.save()
return p
def add_cat(name):
c = Category.objects.get_or_create(name=name)[0]
c.save()
return c
# Start execution here!
if __name__ == '__main__':
print "Starting Rango population script..."
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tango_with_django_project.settings')
from rango.models import Category, Page
populate()
settings.py
"""
Django settings for tango_with_django project.
For more information on this file, see
https://docs.djangoproject.com/en/1.6/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.6/ref/settings/
"""
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(__file__))
print BASE_DIR
SETTINGS_DIR = os.path.dirname(__file__)
PROJECT_PATH = os.path.join(SETTINGS_DIR, os.pardir)
PROJECT_PATH = os.path.abspath(PROJECT_PATH)
TEMPLATE_PATH = os.path.join(PROJECT_PATH, 'templates')
TEMPLATE_DIRS = (
TEMPLATE_PATH,
)
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(PROJECT_PATH, 'media')
DATABASE_PATH = os.path.join(PROJECT_PATH, 'rango.db')
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.6/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'd!bvy8spg0ij7ok6o9%07*on&$1w#pxm=3+3lazxl#6s=h$yn&'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
TEMPLATE_DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'rango',
)
MIDDLEWARE_CLASSES = (
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
)
ROOT_URLCONF = 'tango_with_django.urls'
WSGI_APPLICATION = 'tango_with_django.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.6/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': DATABASE_PATH,
}
}
# Internationalization
# https://docs.djangoproject.com/en/1.6/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.6/howto/static-files/
STATIC_PATH = os.path.join(PROJECT_PATH,'static')
STATIC_URL = '/static/'
STATICFILES_DIRS = (
STATIC_PATH,
)

Answer 1

Your default path for the settings module is incorrect. You have tango_with_django_project.settings where your directory is tango_with_django.settings.
Thus, change the third to last line in your populate_rango.py file:
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tango_with_django.settings')