python - Heroku+Django+Postgres error: "FATAL: database "python_getting_started" does not exist" -

i'm trying getting started python exercise @ heroku (https://devcenter.heroku.com/articles/getting-started-with-python#introduction). i'm following instructions , using git repo provided in tutorial. when go /db page of web app, uses database functionality, error trace:

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environment:   request method: request url: http://localhost:5000/db  django version: 1.8.1 python version: 2.7.5 installed applications: ('django.contrib.admin',  'django.contrib.auth',  'django.contrib.contenttypes',  'django.contrib.sessions',  'django.contrib.messages',  'django.contrib.staticfiles',  'hello') installed middleware: ('django.contrib.sessions.middleware.sessionmiddleware',  'django.middleware.common.commonmiddleware',  'django.middleware.csrf.csrfviewmiddleware',  'django.contrib.auth.middleware.authenticationmiddleware',  'django.contrib.auth.middleware.sessionauthenticationmiddleware',  'django.contrib.messages.middleware.messagemiddleware',  'django.middleware.clickjacking.xframeoptionsmiddleware',  'django.middleware.security.securitymiddleware')   traceback: file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response   132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs) file "/users/lisha/desktop/starred_docs/python-getting-started/hello/views.py" in db   14.     greeting.save() file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/models/base.py" in save   710.                        force_update=force_update, update_fields=update_fields) file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/models/base.py" in save_base   735.         transaction.atomic(using=using, savepoint=false): file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/transaction.py" in __enter__   150.             if not connection.get_autocommit(): file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/backends/base/base.py" in get_autocommit   286.         self.ensure_connection() file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/backends/base/base.py" in ensure_connection   130.                 self.connect() file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/utils.py" in __exit__   97.                 six.reraise(dj_exc_type, dj_exc_value, traceback) file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/backends/base/base.py" in ensure_connection   130.                 self.connect() file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/backends/base/base.py" in connect   119.         self.connection = self.get_new_connection(conn_params) file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py" in get_new_connection   172.         connection = database.connect(**conn_params) file "/users/lisha/desktop/starred_docs/python-getting-started/venv/lib/python2.7/site-packages/psycopg2/__init__.py" in connect   164.     conn = _connect(dsn, connection_factory=connection_factory, async=async)  exception type: operationalerror @ /db exception value: fatal:  database "python_getting_started" not exist 

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the crash when run app locally; app on herokuapp.com works fine. have idea problem might be? appreciated.

#try load local_settings.py if exists try:     .settings_local import * except exception e:     databases = {         "default": {             "engine": "django.db.backends.postgresql_psycopg2",         }     }     import dj_database_url     databases['default'] = dj_database_url.config()     # honor 'x-forwarded-proto' header request.is_secure()     secure_proxy_ssl_header = ('http_x_forwarded_proto', 'https')     # allow host headers     allowed_hosts = [''] 

create settings_local.py near settings.py , declare database settings here

databases = {     'default': {         'engine': 'django.db.backends.postgresql_psycopg2',         'name': 'python_getting_started',         'user': 'some_postgre_user',         'password': 'some_password',     } } 

if don't have python_getting_started have create it:

psql postgres create database python_getting_started; create user some_postgre_user password 'some_password'; grant on database python_getting_started some_postgre_user; \q