Djangoチュートリアル5でのテスト実行時エラー

テストの実行

https://docs.djangoproject.com/ja/3.1/intro/tutorial05/#running-tests

上記のDjangoの自動テストのチュートリアルにて、以下のコマンドを実行。

$ python manage.py test polls

実行後、下記のエラーメッセージが表示された。

$ python manage.py test polls Creating test database for alias 'default'... Traceback (most recent call last): File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/base.py", line 328, in run_from_argv self.execute(*args, **cmd_options) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/base.py", line 369, in execute output = self.handle(*args, **options) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/commands/test.py", line 53, in handle failures = test_runner.run_tests(test_labels) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/test/runner.py", line 684, in run_tests old_config = self.setup_databases(aliases=databases) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/test/runner.py", line 604, in setup_databases return _setup_databases( File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/test/utils.py", line 169, in setup_databases connection.creation.create_test_db( File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/base/creation.py", line 60, in create_test_db self.connection.close() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner return func(*args, **kwargs) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 261, in close if not self.is_in_memory_db(): File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 380, in is_in_memory_db return self.creation.is_in_memory_db(self.settings_dict['NAME']) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/creation.py", line 12, in is_in_memory_db return database_name == ':memory:' or 'mode=memory' in database_name TypeError: argument of type 'PosixPath' is not iterable During handling of the above exception, another exception occurred: Traceback (most recent call last): File "manage.py", line 22, in <module> main() File "manage.py", line 18, in main execute_from_command_line(sys.argv) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line utility.execute() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/commands/test.py", line 23, in run_from_argv super().run_from_argv(argv) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/base.py", line 341, in run_from_argv connections.close_all() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/utils.py", line 230, in close_all connection.close() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner return func(*args, **kwargs) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 261, in close if not self.is_in_memory_db(): File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 380, in is_in_memory_db return self.creation.is_in_memory_db(self.settings_dict['NAME']) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/creation.py", line 12, in is_in_memory_db return database_name == ':memory:' or 'mode=memory' in database_name TypeError: argument of type 'PosixPath' is not iterable MackBook-Pro-2013:mysite dev_user$ MackBook-Pro-2013:mysite dev_user$ MackBook-Pro-2013:mysite dev_user$ python manage.py test polls Creating test database for alias 'default'... Traceback (most recent call last): File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/base.py", line 328, in run_from_argv self.execute(*args, **cmd_options) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/base.py", line 369, in execute output = self.handle(*args, **options) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/commands/test.py", line 53, in handle failures = test_runner.run_tests(test_labels) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/test/runner.py", line 684, in run_tests old_config = self.setup_databases(aliases=databases) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/test/runner.py", line 604, in setup_databases return _setup_databases( File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/test/utils.py", line 169, in setup_databases connection.creation.create_test_db( File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/base/creation.py", line 60, in create_test_db self.connection.close() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner return func(*args, **kwargs) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 261, in close if not self.is_in_memory_db(): File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 380, in is_in_memory_db return self.creation.is_in_memory_db(self.settings_dict['NAME']) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/creation.py", line 12, in is_in_memory_db return database_name == ':memory:' or 'mode=memory' in database_name TypeError: argument of type 'PosixPath' is not iterable During handling of the above exception, another exception occurred: Traceback (most recent call last): File "manage.py", line 22, in <module> main() File "manage.py", line 18, in main execute_from_command_line(sys.argv) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line utility.execute() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/commands/test.py", line 23, in run_from_argv super().run_from_argv(argv) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/core/management/base.py", line 341, in run_from_argv connections.close_all() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/utils.py", line 230, in close_all connection.close() File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner return func(*args, **kwargs) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 261, in close if not self.is_in_memory_db(): File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 380, in is_in_memory_db return self.creation.is_in_memory_db(self.settings_dict['NAME']) File "/Users/dev_user/.pyenv/versions/3.8.3/lib/python3.8/site-packages/django/db/backends/sqlite3/creation.py", line 12, in is_in_memory_db return database_name == ':memory:' or 'mode=memory' in database_name TypeError: argument of type 'PosixPath' is not iterable

修正箇所は、「/mysite/settings.py」のDATABASES設定内。

'NAME': BASE_DIR / 'db.sqlite3',

↓

'NAME': str( BASE_DIR / 'db.sqlite3' ),

os.pathの方を使えばこのエラーは起きなさそう。

参考サイト

Fixed #29983 -- Replaced os.path with pathlib.Path. #10684

https://github.com/django/django/pull/10684

How to use pathlib.Path in Django?

https://github.com/django/django/pull/10684

Django tutorial: `python manage.py startapp polls` fails

https://forum.djangoproject.com/t/django-tutorial-python-manage-py-startapp-polls-fails/2718