为什么得到 django.core.exceptions.AppRegistryNotReady：应用程序尚未加载。在创建 CustomUser 和 CustomUserManager 时
Why getting django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet. while creating CustomUser and CustomUserManager
我正在尝试 运行 一个 django 应用程序，但在 Title.Django 3.2.3 和 Python 3.9.5 中提到的错误在我的 project.I 中使用了尝试 运行 任何波纹管命令时出现此错误：-
python manage.py makemigrationspython
manage.py migratepython
python manage.py runserver
setting.py :-
"""
Django settings for ecommerceproject project.
Generated by 'django-admin startproject' using Django 3.2.3.
For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""
from pathlib import Path
import os
# Build paths inside the project like this: BASE_DIR / 'subdir'.
import loginsignup.models
BASE_DIR = Path(__file__).resolve().parent.parent
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-mw$%fa@7r-g_1*w(d$!bd*si_d3sxrx#c@8i&&(h*@&!(oz#%l'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'products',
'loginsignup',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'ecommerceproject.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'ecommerceproject.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/
STATIC_URL = '/static/'
MEDIA_ROOT = BASE_DIR / 'media'
# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
AUTH_USER_MODEL = loginsignup.models.CustomUsers
完全错误：-
Traceback (most recent call last):
File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 22, in <module>
main()
File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
utility.execute()
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 363, in execute
settings.INSTALLED_APPS
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 82, in __getattr__
self._setup(name)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 69, in _setup
self._wrapped = Settings(settings_module)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 170, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 855, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "C:\Users\Admin\PycharmProjects\ecommerceproject\ecommerceproject\settings.py", line 17, in <module>
import loginsignup.models
File "C:\Users\Admin\PycharmProjects\ecommerceproject\loginsignup\models.py", line 1, in <module>
from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\models.py", line 3, in <module>
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\base_user.py", line 48, in <module>
class AbstractBaseUser(models.Model):
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 108, in __new__
app_config = apps.get_containing_app_config(module)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 253, in get_containing_app_config
self.check_apps_ready()
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 136, in check_apps_ready
raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.
在 运行ning django-admin 检查后我得到以下错误：-
Traceback (most recent call last):
File "c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py", line 197, in _run_module_as_main
return _run_code(code, main_globals, None,
File "c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\Scripts\django-admin.exe\__main__.py", line 7, in <module>
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
utility.execute()
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 398, in execute
output = self.handle(*args, **options)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\commands\check.py", line 63, in handle
self.check(
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 419, in check
all_issues = checks.run_checks(
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\checks\registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\checks\model_checks.py", line 18, in check_all_models
models = apps.get_models()
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\apps\registry.py", line 179, in get_models
self.check_models_ready()
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\apps\registry.py", line 141, in check_models_ready
raise AppRegistryNotReady("Models aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.
您需要为您的用户模型设置正确的 python 路径，但不引用模型 class 对象本身。 Django 需要先正确初始化。
改变
AUTH_USER_MODEL = loginsignup.models.CustomUsers
到
AUTH_USER_MODEL = "loginsignup.models.CustomUsers"
并从 settings.py
中删除 import loginsignup.models
我正在尝试 运行 一个 django 应用程序，但在 Title.Django 3.2.3 和 Python 3.9.5 中提到的错误在我的 project.I 中使用了尝试 运行 任何波纹管命令时出现此错误：-
python manage.py makemigrationspython
manage.py migratepython
python manage.py runserver
setting.py :-
"""
Django settings for ecommerceproject project.
Generated by 'django-admin startproject' using Django 3.2.3.
For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""
from pathlib import Path
import os
# Build paths inside the project like this: BASE_DIR / 'subdir'.
import loginsignup.models
BASE_DIR = Path(__file__).resolve().parent.parent
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-mw$%fa@7r-g_1*w(d$!bd*si_d3sxrx#c@8i&&(h*@&!(oz#%l'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'products',
'loginsignup',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'ecommerceproject.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'ecommerceproject.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/
STATIC_URL = '/static/'
MEDIA_ROOT = BASE_DIR / 'media'
# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
AUTH_USER_MODEL = loginsignup.models.CustomUsers
完全错误：-
Traceback (most recent call last):
File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 22, in <module>
main()
File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
utility.execute()
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 363, in execute
settings.INSTALLED_APPS
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 82, in __getattr__
self._setup(name)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 69, in _setup
self._wrapped = Settings(settings_module)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 170, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 855, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "C:\Users\Admin\PycharmProjects\ecommerceproject\ecommerceproject\settings.py", line 17, in <module>
import loginsignup.models
File "C:\Users\Admin\PycharmProjects\ecommerceproject\loginsignup\models.py", line 1, in <module>
from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\models.py", line 3, in <module>
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\base_user.py", line 48, in <module>
class AbstractBaseUser(models.Model):
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 108, in __new__
app_config = apps.get_containing_app_config(module)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 253, in get_containing_app_config
self.check_apps_ready()
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 136, in check_apps_ready
raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.
在 运行ning django-admin 检查后我得到以下错误：-
Traceback (most recent call last):
File "c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py", line 197, in _run_module_as_main
return _run_code(code, main_globals, None,
File "c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\Scripts\django-admin.exe\__main__.py", line 7, in <module>
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
utility.execute()
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 398, in execute
output = self.handle(*args, **options)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\commands\check.py", line 63, in handle
self.check(
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 419, in check
all_issues = checks.run_checks(
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\checks\registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\checks\model_checks.py", line 18, in check_all_models
models = apps.get_models()
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\apps\registry.py", line 179, in get_models
self.check_models_ready()
File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\apps\registry.py", line 141, in check_models_ready
raise AppRegistryNotReady("Models aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.
您需要为您的用户模型设置正确的 python 路径，但不引用模型 class 对象本身。 Django 需要先正确初始化。
改变
AUTH_USER_MODEL = loginsignup.models.CustomUsers
到
AUTH_USER_MODEL = "loginsignup.models.CustomUsers"
并从 settings.py
import loginsignup.models