姜戈ModuleNotFoundError突然间

Question

突然之间，我的django项目不再起作用了。不仅是我的真正的分支，甚至是主人。这是在晚上回到我的项目之后发生的。我遇到的错误是，当我运行任何命令时，我收到以下消息：

ModuleNotFoundError: No module named 'pur_beurre.pur_beurre'

(注: pur_beurre是我的项目名称)

当我运行python manage.py时，我有所有可能的命令列表，加上红色的新消息：

Note that only Django core commands are listed as settings are not properly configured (error: No module named 'pur_beurre.pur_beurre').

我试着把pur_beurre和pur_beurre.pur_beurre放在settings.py中安装的应用程序中，但是它不起作用。

PS C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\pur_beurre> python .\manage.py runserver
Traceback (most recent call last):
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\base.py", line 373, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\commands\runserver.py", line 66, in execute
    super().execute(*args, **options)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\base.py", line 417, in execute
    output = self.handle(*args, **options)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\commands\runserver.py", line 73, in handle
    if not settings.DEBUG and not settings.ALLOWED_HOSTS:
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\conf\__init__.py", line 84, in __getattr__
    self._setup(name)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\conf\__init__.py", line 71, in _setup
    self._wrapped = Settings(settings_module)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\conf\__init__.py", line 179, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "C:\Users\tdechanet.TWM\AppData\Local\Programs\Python\Python38-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'pur_beurre.pur_beurre'

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 "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\__init__.py", line 425, in execute_from_command_line
    utility.execute()
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\__init__.py", line 419, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\core\management\base.py", line 386, in run_from_argv
    connections.close_all()
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\db\utils.py", line 208, in close_all
    for alias in self:
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\utils\connection.py", line 73, in __iter__
    return iter(self.settings)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\utils\functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\utils\connection.py", line 45, in settings
    self._settings = self.configure_settings(self._settings)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\db\utils.py", line 144, in configure_settings
    databases = super().configure_settings(databases)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\utils\connection.py", line 50, in configure_settings
    settings = getattr(django_settings, self.settings_name)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\conf\__init__.py", line 84, in __getattr__
    self._setup(name)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\conf\__init__.py", line 71, in _setup
    self._wrapped = Settings(settings_module)
  File "C:\Users\tdechanet.TWM\Documents\OpenClassrooms\p8\code\.venv\lib\site-packages\django\conf\__init__.py", line 179, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "C:\Users\tdechanet.TWM\AppData\Local\Programs\Python\Python38-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'pur_beurre.pur_beurre'

下面是我安装的应用程序：

INSTALLED_APPS = [
    'main_site.apps.MainSiteConfig',
    'user_management.apps.UserManagementConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

Answer 1

manage.py中的第一行是

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'pur_beurre.settings')

它将设置的标准路径设置为默认路径，但如果没有在系统级别上定义DJANGO_SETTINGS_MODULE，则为默认路径。

您的错误消息看起来像是在windows上定义了一个环境变量DJANGO_SETTINGS_MODULE="pur_beurre.pur_beurre“。

只需在manage.py开头选中“添加这一行”：

print(os.environ['DJANGO_SETTINGS_MODULE'])

然后检查windows设置的变量，更正或删除，以防万一重新启动。