Django 将无法识别设置模块

Question

我正在尝试根据this guide 为 Django 应用程序设置一个设置模块。

我创建了设置模块，其中包含 __init__.py、common.py 和 dev.py。然而，当我尝试python manage.py runserver --settings=settings.dev 时，我得到了导入错误：

“没有名为‘settings’的模块”

如果我尝试python manage.py runserver --settings={APP_NAME}.settings.dev，则会收到导入错误：

"没有名为 'common' 的模块

我觉得我在这里遗漏了一些简单的东西，但似乎无法弄清楚。以下是我的文件内容：

dev.py：

from common import *
# from os.path import join, normpath


# DEBUG CONFIG
DEBUG = True

ALLOWED_HOSTS = []
# END DEBUG CONFIG


# DATABASE CONFIG
# https://docs.djangoproject.com/en/1.10/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'Local instance wampmysqld64',
        'USER': '',
        'PASSWORD': '',
        'HOST': 'localhost',
        'PORT': '3306',

    }
}
# END DATABASE CONFIG

common.py 导入操作系统

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.10/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = ''

# 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',
    'test',
]

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 = 'API_PG.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 = 'PG.wsgi.application'





# Password validation
# https://docs.djangoproject.com/en/1.10/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/1.10/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/1.10/howto/static-files/

STATIC_URL = '/static/'

ma​​nage.py：

import os
import sys

if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "PG.settings.dev")
    try:
        from django.core.management import execute_from_command_line
    except ImportError:
        # The above import may fail for some other reason. Ensure that the
        # issue is really that Django is missing to avoid masking other
        # exceptions on Python 2.
        try:
            import django
        except ImportError:
            raise ImportError(
                "Couldn't import Django. Are you sure it's installed and "
                "available on your PYTHONPATH environment variable? Did you "
                "forget to activate a virtual environment?"
            )
       raise
    execute_from_command_line(sys.argv)

wsgi.py

import os
import sys

root_path = os.path.abspath(os.path.split(__file__)[0])
sys.path.insert(0, os.path.join(root_path, 'PG.settings.dev'))
sys.path.insert(0, root_path)

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "PG.settings.dev")

from django.core.wsgi import get_wsgi_application

application = get_wsgi_application()

PG 是项目的名称；我尝试删除它并在 manage.py 和 wsgi.py 中仅使用“settings.dev”，但没有运气。

这里有一个类似的帖子，但问题似乎有所不同。

文件夹结构： here

Answer 1

如果您尝试为您的项目使用不同的设置模块，我建议您尝试在 wsgi.py 文件中添加“DJANGO_SETTINGS_MODULE”。我在这样做之前和之后都遇到了这个问题，它工作正常。我希望这能解决您的问题。

sys.path.append('/path/to/project)
os.environ["DJANGO_SETTINGS_MODULE"] = 'your_settings_module'