python - Django 没有名为 'main' 的模块

Question

我正在我的电脑上开发一个 Django 项目，然后我创建了一个名为“register”的应用程序，当我尝试运行 manage.py runserver 时，我收到一个奇怪的错误:我使用Python 3.8.3。当我添加注册表单时出现此错误。

  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main    
    execute_from_command_line(sys.argv)
  File "C:\Python38\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "C:\Python38\lib\site-packages\django\core\management\__init__.py", line 377, in execute
    django.setup()
  File "C:\Python38\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Python38\lib\site-packages\django\apps\registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "C:\Python38\lib\site-packages\django\apps\config.py", line 116, in create
    mod = import_module(mod_path)
  File "C:\Python38\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 'main'

我的设置.py:

DEBUG = True


ALLOWED_HOSTS = ['*']

SETTINGS_PATH = os.path.dirname(os.path.dirname(__file__))
# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'simple2',
    "crispy_forms",
    'main.apps.MainConfig',
    'register.apps.RegisterConfig',
    'register'
]
...

Answer 1

我猜测您没有配置 WSGI 应用程序，因为 Django 的应用程序引擎会在名为 main.py 的文件中查找 app 变量。您可以通过以下两种方式来看待这个问题:

包含您的 WSGI 申请

您仍然可以创建一个名为 main.py 的文件，其中包含 app 变量。您不需要编写任何内容，只需导入它即可(假设您的项目名称是 projekt:

from projekt.wsgi import main as app

添加自定义入口点

如 Google's Appengine 所示:

entrypoint: Optional. The command that is executed when your app starts. For your app to receive HTTP requests, entrypoint should contain a command which starts a web server that listens on the port specified by the PORT environment variable. If you do not specify an entrypoint, App Engine will configure and start the Gunicorn webserver.

默认值与您的需要之间的比较:

# default
entrypoint: gunicorn -b :$PORT main:app
# What you need
entrypoint: gunicorn -b :$PORT demosite.wsgi:main

有关 here 的更多信息。 Reference .