Djangogirlsチュートリアル中のHerokuへのデプロイでつまずいています。

Question

デプロイが実行できない

コマンドプロントにおいて、git push heroku masterを実行したところ、エラーが発生してしまいました。他者様の質問と回答を見比べて修正していったのですが、どうしてもエラーが発生してしまいます。

error: failed to push some refs to 'https://git.heroku.com/kinnennnichousen.git'

(myvenv) C:\Users\waito_000\djangogirl>git push heroku master
Enumerating objects: 24, done.
Counting objects: 100% (24/24), done.
Delta compression using up to 4 threads.
Compressing objects: 100% (21/21), done.
Writing objects: 100% (24/24), 4.74 KiB | 285.00 KiB/s, done.
Total 24 (delta 3), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Python app detected
remote:  !     The latest version of Python 3.6 is python-3.6.6 (you are using python-3.6.5, which is unsupported).
remote:  !     We recommend upgrading by specifying the latest version (python-3.6.6).
remote:        Learn More: https://devcenter.heroku.com/articles/python-runtimes
remote: -----> Installing python-3.6.5
remote: -----> Installing pip
remote: -----> Installing requirements with pip
remote:        Collecting dj-database-url==0.5.0 (from -r /tmp/build_73a7750bc4c292afd6f9843f75de1a20/requirements.txt (line 1))
remote:          Downloading https://files.pythonhosted.org/packages/d4/a6/4b8578c1848690d0c307c7c0596af2077536c9ef2a04d42b00fabaa7e49d/dj_database_url-0.5.0-py2.py3-none-any.whl
remote:        Collecting Django==2.0.7 (from -r /tmp/build_73a7750bc4c292afd6f9843f75de1a20/requirements.txt (line 2))
remote:          Downloading https://files.pythonhosted.org/packages/ab/15/cfde97943f0db45e4f999c60b696fbb4df59e82bbccc686770f4e44c9094/Django-2.0.7-py3-none-any.whl (7.1MB)
remote:        Collecting gunicorn==19.9.0 (from -r /tmp/build_73a7750bc4c292afd6f9843f75de1a20/requirements.txt (line 3))
remote:          Downloading https://files.pythonhosted.org/packages/8c/da/b8dd8deb741bff556db53902d4706774c8e1e67265f69528c14c003644e6/gunicorn-19.9.0-py2.py3-none-any.whl (112kB)
remote:        Collecting pytz==2018.5 (from -r /tmp/build_73a7750bc4c292afd6f9843f75de1a20/requirements.txt (line 4))
remote:          Downloading https://files.pythonhosted.org/packages/30/4e/27c34b62430286c6d59177a0842ed90dc789ce5d1ed740887653b898779a/pytz-2018.5-py2.py3-none-any.whl (510kB)
remote:        Collecting whitenoise==3.3.1 (from -r /tmp/build_73a7750bc4c292afd6f9843f75de1a20/requirements.txt (line 5))
remote:          Downloading https://files.pythonhosted.org/packages/0c/58/0f309a821b9161d0e3a73336a187d1541c2127aff7fdf3bf7293f9979d1d/whitenoise-3.3.1-py2.py3-none-any.whl
remote:        Collecting psycopg2==2.7.5 (from -r /tmp/build_73a7750bc4c292afd6f9843f75de1a20/requirements.txt (line 6))
remote:          Downloading https://files.pythonhosted.org/packages/5e/d0/9e2b3ed43001ebed45caf56d5bb9d44ed3ebd68e12b87845bfa7bcd46250/psycopg2-2.7.5-cp36-cp36m-manylinux1_x86_64.whl (2.7MB)
remote:        Installing collected packages: dj-database-url, pytz, Django, gunicorn, whitenoise, psycopg2
remote:        Successfully installed Django-2.0.7 dj-database-url-0.5.0 gunicorn-19.9.0 psycopg2-2.7.5 pytz-2018.5 whitenoise-3.3.1
remote:
remote: -----> $ python manage.py collectstatic --noinput
remote:        Traceback (most recent call last):
remote:          File "manage.py", line 15, in <module>
remote:            execute_from_command_line(sys.argv)
remote:          File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
remote:            utility.execute()
remote:          File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 317, in execute
remote:            settings.INSTALLED_APPS
remote:          File "/app/.heroku/python/lib/python3.6/site-packages/django/conf/__init__.py", line 56, in __getattr__
remote:            self._setup(name)
remote:          File "/app/.heroku/python/lib/python3.6/site-packages/django/conf/__init__.py", line 43, in _setup
remote:            self._wrapped = Settings(settings_module)
remote:          File "/app/.heroku/python/lib/python3.6/site-packages/django/conf/__init__.py", line 106, in __init__
remote:            mod = importlib.import_module(self.SETTINGS_MODULE)
remote:          File "/app/.heroku/python/lib/python3.6/importlib/__init__.py", line 126, in import_module
remote:            return _bootstrap._gcd_import(name[level:], package, level)
remote:          File "<frozen importlib._bootstrap>", line 994, in _gcd_import
remote:          File "<frozen importlib._bootstrap>", line 971, in _find_and_load
remote:          File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
remote:          File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
remote:          File "<frozen importlib._bootstrap_external>", line 678, in exec_module
remote:          File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
remote:          File "/tmp/build_73a7750bc4c292afd6f9843f75de1a20/mysite1/settings.py", line 124, in <module>
remote:            DATABASE['default'] = dj_database_url.config()
remote:        NameError: name 'DATABASE' is not defined
remote:
remote:  !     Error while running '$ python manage.py collectstatic --noinput'.
remote:        See traceback above for details.
remote:
remote:        You may need to update application code to resolve this error.
remote:        Or, you can disable collectstatic for this application:
remote:
remote:           $ heroku config:set DISABLE_COLLECTSTATIC=1
remote:
remote:        https://devcenter.heroku.com/articles/django-assets
remote:  !     Push rejected, failed to compile Python app.
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: !       Push rejected to kinnennnichousen.
remote:
To https://git.heroku.com/kinnennnichousen.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/kinnennnichousen.git'

試したこと

requirements.txt内のpsycopg2最新版に更新。gitへのコミット。

補足情報（FW/ツールのバージョンなど）

python 3.6.5
django 2.0.7
atom
git for windows10

djangogirls tutorial デプロイ！
https://djangogirlsjapan.gitbooks.io/workshop_tutorialjp/deploy/

Answer 1

DATABASE['default'] = dj_database_url.config()
NameError: name 'DATABASE' is not defined

とあります。
mysite/local_settings.pyにDATABASEの定義を書いたか、mysite/settings.pyに追加した記述が最終行になっているかなど、DATABASE関連のコードを確認するとよいと思います。