django問題啟動服務器，因為SessionAuthenticationMiddleware

Question

按照本教程操作時，我一直在嘗試使python 3.2.2和django 1.6.5正常工作。 出於某種原因，我一直遇到此錯誤，但無法在線找到有關發生這種情況的答案。

File "/home/salinn/.pyenv/versions/3.2.2/lib/python3.2/site-packages/django/utils/module_loading.py", line 28, in import_by_path
attr = getattr(module, class_name)
AttributeError: 'module' object has no attribute 'SessionAuthenticationMiddleware'

我嘗試過更改網址，並嘗試使用設置MiddlewareClass，任何正確方向的指針都很棒。

我的settings.py文件是

"""
Django settings for mysite project.

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

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

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(__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 = '9xn60p#gnsg+es+xx@sx3f6b_f#stv!ik27myy+g9e3)mtgx)g'

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

TEMPLATE_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',
)

MIDDLEWARE_CLASSES = (
    '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 = 'mysite.urls'

WSGI_APPLICATION = 'mysite.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'),
    }
}

# 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

django 1.7中添加了django.contrib.auth.middleware.SessionAuthenticationMiddleware ，並且您正在使用Django 1.6

升級到Django 1.7或將其從MIDDLEWARE_CLASSES刪除。

您可以通過以下方式檢查Django版本：

首先，檢查在Python控制台中導入了哪個版本的Django：

import django
django.VERSION

其次，檢查django-admin.py的版本-這是用於生成Django項目等的腳本。在系統外殼中運行以下命令：

django-admin.py --version

版本應匹配。 如果他們不這樣做，您可能會以某種方式安裝兩個單獨的Django（例如，針對Python 2和Python 3）。

附帶一提，許多外部模塊仍與Django 1.7不兼容，因此，如果您要構建實際應用程序，也許暫時堅持使用Django 1.6是一個更好的選擇。 另一方面，如果您只想學習香草Django，我認為您應該從最新版本開始。