Question

我正在尝试将Visual Studio用于我的Django项目。我的Visual Studio版本是2017，我的Python版本是3.6，而我的Django版本开头是1.1.18。然后将其升级到2.1.5。我制作一个应用程序，然后将其添加到已安装的应用程序中。但是，当我迁移项目时，出现以下错误：

Traceback (most recent call last):
  File "E:\Django_Try\Test4\Test4\manage.py", line 17, in <module>
    execute_from_command_line(sys.argv)
  File "E:\Django_Try\Test4\Test4\env\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "E:\Django_Try\Test4\Test4\env\lib\site-packages\django\core\management\__init__.py", line 357, in execute
    django.setup()
  File "E:\Django_Try\Test4\Test4\env\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "E:\Django_Try\Test4\Test4\env\lib\site-packages\django\apps\registry.py", line 89, in populate
    app_config = AppConfig.create(entry)
  File "E:\Django_Try\Test4\Test4\env\lib\site-packages\django\apps\config.py", line 90, in create
    module = import_module(entry)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python36_64\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 953, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'saeed'
The interactive Python process has exited.
The interactive Python process has exited.
>>>

似乎无法识别我的应用。

我的设置：

"""
Django settings for Test4 project.

Generated by 'django-admin startproject' using Django 1.9.1.

For more information on this file, see
https://docs.djangoproject.com/en/1.9/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.9/ref/settings/
"""

import os
import posixpath

# 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/1.9/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '79c97724-a0e9-44f0-bffd-e255d60e5460'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    # Add your apps here to enable them
    'saeed',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

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.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'Test4.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        '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 = 'Test4.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.9/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/1.9/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/1.9/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/1.9/howto/static-files/

STATIC_URL = '/static/'

STATIC_ROOT = posixpath.join(*(BASE_DIR.split(os.path.sep) + ['static']))

似乎无法识别我的应用。

请通知我。

赛义德

Answer 1

编辑：您似乎已将主/基本应用（包含settings.py的应用）从Test4重命名为saeed。您无需在Django项目中注册基础应用程序，因为它已经是该程序的入口点。看来您的settings.py文件的其余部分是为名为Test4而不是saeed的基本应用程序配置的（例如，由于ROOT_URLCONF = 'Test4.urls'可以看出来）。您可以在Django here中阅读有关项目和应用程序的更多信息。

因为通常的做法是让基本应用程序与项目共享相同的名称，所以建议将saeed目录（返回）的名称更改为Test4。

如果要创建新应用，可以运行：

python manage.py startapp saeed

因此您的项目文件结构将如下所示：

Test4/     # project directory
  saeed/   # your app
    migrations/
    models.py
    apps.py
  Test4/   # base app for the site
    settings.py
    urls.py
  manage.py
  requirements.txt

然后将模型放入saeed而不是Test4中。因此，您的项目目录Test4/将包含Test4/，saeed/和manage.py等。创建此新应用后，将可以进行以下操作：

原始答案： 确保saeed/apps.py的配置正确，例如：

# saeed/apps.py

from django.apps import AppConfig

class SaeedConfig(AppConfig):
    name = "saeed"
    verbose_name = "Saeed"

然后，您需要将INSTALLED_APPS中的行从"saeed"更改为

"saeed.apps.SaeedConfig"

有关更多信息，请参见docs on configuring applications。

Answer 2

我认为这是不正确的文件位置层次结构。

例如应该如此。

project
    mysite
        settings.py
        ...
    saeed
        makemigrations
        models.py
        apps.py
        ...
    manage.py

Read this

将Django应用添加到已安装的应用时出现问题，无法迁移

2 个答案: