Question

我安装了其余框架，现在尝试通过将其添加到INSTALLED_APPS文件的settings.py部分来将其添加到我的Django项目中，但是每当我尝试在终端中获取它时，运行我的服务器。

直到我将'rest-framework'添加到settings.py为止，后端完全可用。

在寻找解决方案但找不到任何帮助时，我将不胜感激

Watching for file changes with StatReloader
Performing system checks...

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "c:\users\admin\django\django\template\utils.py", line 66, in __getitem__
    return self._engines[alias]
KeyError: 'django'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\admin\django\django\template\backends\django.py",
line 121, in get_package_libraries
    module = import_module(entry[1])
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python37-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\rest_framework\templatetags\rest_framework.py", line 9, in <module>
    from django.utils import six
ImportError: cannot import name 'six' from 'django.utils' (c:\users\admin\django\django\utils\__init__.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python37-32\lib\threading.py", line 917, in _bootstrap_inner
    self.run()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python37-32\lib\threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "c:\users\admin\django\django\utils\autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "c:\users\admin\django\django\core\management\commands\runserver.py", line 117, in inner_run
    self.check(display_num_errors=True)
  File "c:\users\admin\django\django\core\management\base.py", line 395, in check
    include_deployment_checks=include_deployment_checks,
  File "c:\users\admin\django\django\core\management\base.py", line 382, in _run_checks
    return checks.run_checks(**kwargs)
  File "c:\users\admin\django\django\core\checks\registry.py", line 72, in run_checks
    new_errors = check(app_configs=app_configs)
  File "c:\users\admin\django\django\contrib\admin\checks.py", line 76, in check_dependencies
    for engine in engines.all():
  File "c:\users\admin\django\django\template\utils.py", line 90, in all
    return [self[alias] for alias in self]
  File "c:\users\admin\django\django\template\utils.py", line 90, in <listcomp>
    return [self[alias] for alias in self]
  File "c:\users\admin\django\django\template\utils.py", line 81, in __getitem__
    engine = engine_cls(params)
  File "c:\users\admin\django\django\template\backends\django.py",
line 25, in __init__
    options['libraries'] = self.get_templatetag_libraries(libraries)
  File "c:\users\admin\django\django\template\backends\django.py",
line 43, in get_templatetag_libraries
    libraries = get_installed_libraries()
  File "c:\users\admin\django\django\template\backends\django.py",
line 108, in get_installed_libraries
    for name in get_package_libraries(pkg):
  File "c:\users\admin\django\django\template\backends\django.py",
line 125, in get_package_libraries
    "trying to load '%s': %s" % (entry[1], e)
django.template.library.InvalidTemplateLibrary: Invalid template library specified. ImportError raised when trying to load 'rest_framework.templatetags.rest_framework': cannot import name 'six' from 'django.utils' (c:\users\admin\django\django\utils\__init__.py)

这是设置。py

import os

# 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/dev/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 's@q-i0&o-#cwoil9jv$3*e78lscfezur^v3w@vzpu61#56+3k#'

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

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'music.apps.MusicConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',

]

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 = 'website.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 = 'website.wsgi.application'


# Database
# https://docs.djangoproject.com/en/dev/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/dev/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/dev/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/dev/howto/static-files/

STATIC_URL = '/static/'

Answer 1

使用PIP运行以下命令：

pip install djangorestframework

浏览错误日志后，我认为这里还缺少six：

pip install six

我希望对您有帮助

Answer 2

rest_framework试图从six导入django.utils，但在Django 3.0 及更高版本中具有since been removed。

File "C:\Users\Admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\rest_framework\templatetags\rest_framework.py", line 9, in <module>
    from django.utils import six

您可能想将Django版本降级到2.2，或者通过以下方式创建补丁在django.utils中创建一个新文件 six.py 并导入six：

import six

并在您的环境中安装six：

pip install six

无法在settings.py

2 个答案: