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python之ImportError : No module named django. session

2025年05月04日42zengkefu

我正在尝试运行一个项目

但它给出了以下错误

Traceback (most recent call last): 
  File "/usr/lib/python2.7/wsgiref/handlers.py", line 85, in run 
    self.result = application(self.environ, self.start_response) 
  File "/usr/local/lib/python2.7/dist-packages/django/contrib/staticfiles/handlers.py", line 63, in __call__ 
    return self.application(environ, start_response) 
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/wsgi.py", line 170, in __call__ 
    self.load_middleware() 
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 52, in load_middleware 
    mw_instance = mw_class() 
  File "/usr/local/lib/python2.7/dist-packages/django/contrib/sessions/middleware.py", line 11, in __init__ 
    engine = import_module(settings.SESSION_ENGINE) 
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module 
    __import__(name) 
 ImportError: No module named django.sessions 
 [08/Sep/2015 02:37:00] "GET / HTTP/1.1" 500 59

setting.py 文件是:

from mongoengine import connect 
connect("authentication_demo") 
 
DEBUG = True 
TEMPLATE_DEBUG = DEBUG 
 
ADMINS = ( 
    # ('Your Name', 'your_email@example.com'), 
) 
 
MANAGERS = ADMINS 
 
import os 
HERE = os.path.dirname( os.path.abspath(__file__) ) 
 
# This needs to be changed as the site is moved around 
HOSTNAME='llovett.cs.oberlin.edu:8050' 
 
# Message storage backend 
MESSAGE_STORAGE = 'django.contrib.messages.storage.session.SessionStorage' 
 
# Local time zone for this installation. Choices can be found here: 
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name 
# although not all choices may be available on all operating systems. 
# In a Windows environment this must be set to your system time zone. 
TIME_ZONE = 'America/Chicago' 
 
# Language code for this installation. All choices can be found here: 
# http://www.i18nguy.com/unicode/language-identifiers.html 
LANGUAGE_CODE = 'en-us' 
 
SITE_ID = 1 
 
# If you set this to False, Django will make some optimizations so as not 
# to load the internationalization machinery. 
USE_I18N = True 
 
# If you set this to False, Django will not format dates, numbers and 
# calendars according to the current locale. 
USE_L10N = True 
 
# If you set this to False, Django will not use timezone-aware datetimes. 
USE_TZ = True 
 
# Absolute filesystem path to the directory that will hold user-uploaded files. 
# Example: "/home/media/media.lawrence.com/media/" 
MEDIA_ROOT = HERE + '/media/' 
 
# URL that handles the media served from MEDIA_ROOT. Make sure to use a 
# trailing slash. 
# Examples: "http://media.lawrence.com/media/", "http://example.com/media/" 
MEDIA_URL = '/media/' 
 
# Absolute path to the directory static files should be collected to. 
# Don't put anything in this directory yourself; store your static files 
# in apps' "static/" subdirectories and in STATICFILES_DIRS. 
# Example: "/home/media/media.lawrence.com/static/" 
STATIC_ROOT = HERE + '/static/' 
 
# URL prefix for static files. 
# Example: "http://media.lawrence.com/static/" 
STATIC_URL = '/static/' 
 
# Additional locations of static files 
STATICFILES_DIRS = ( 
    # Put strings here, like "/home/html/static" or "C:/www/django/static". 
    # Always use forward slashes, even on Windows. 
    # Don't forget to use absolute paths, not relative paths. 
) 
 
# List of finder classes that know how to find static files in 
# various locations. 
STATICFILES_FINDERS = ( 
    'django.contrib.staticfiles.finders.FileSystemFinder', 
    'django.contrib.staticfiles.finders.AppDirectoriesFinder', 
#    'django.contrib.staticfiles.finders.DefaultStorageFinder', 
) 
 
# Make this unique, and don't share it with anybody. 
SECRET_KEY = '#%djb@u^n&(wxr=t46*tgeby%qs1jz(wgi^wc#!6=q!m_--%br' 
 
# List of callables that know how to import templates from various sources. 
TEMPLATE_LOADERS = ( 
    'django.template.loaders.filesystem.Loader', 
    'django.template.loaders.app_directories.Loader', 
#     'django.template.loaders.eggs.Loader', 
) 
 
MIDDLEWARE_CLASSES = ( 
    'django.middleware.common.CommonMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware', 
    # Uncomment the next line for simple clickjacking protection: 
    # 'django.middleware.clickjacking.XFrameOptionsMiddleware', 
) 
 
AUTHENTICATION_BACKENDS = ( 
    'mongoengine.django.auth.MongoEngineBackend', 
) 
 
SESSION_ENGINE = 'mongoengine.django.sessions' 
 
ROOT_URLCONF = 'authentication.urls' 
 
# Python dotted path to the WSGI application used by Django's runserver. 
WSGI_APPLICATION = 'authentication.wsgi.application' 
 
#TEMPLATE_DIRS = ( 
TEMPLATE_PATH =   HERE + '/templates/' 
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates". 
    # Always use forward slashes, even on Windows. 
    # Don't forget to use absolute paths, not relative paths. 
#) 
TEMPLATES = [ 
    { 
        'BACKEND': 'django.template.backends.django.DjangoTemplates', 
        'DIRS': [TEMPLATE_PATH], 
        'APP_DIRS': True, 
        'OPTIONS': { 
            'context_processors': [ 
                'django.contrib.auth.context_processors.auth', 
                'django.contrib.messages.context_processors.messages', 
            ], 
        }, 
    }, 
] 
 
#TEMPLATE_CONTEXT_PROCESSORS = ( 
#    'django.contrib.auth.context_processors.auth', 
#   'django.contrib.messages.context_processors.messages', 
#) 
 
INSTALLED_APPS = ( 
    'django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.sites', 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    'gauth', 
    # Uncomment the next line to enable the admin: 
    # 'django.contrib.admin', 
    # Uncomment the next line to enable admin documentation: 
    # 'django.contrib.admindocs', 
) 
 
# A sample logging configuration. The only tangible logging 
# performed by this configuration is to send an email to 
# the site admins on every HTTP 500 error when DEBUG=False. 
# See http://docs.djangoproject.com/en/dev/topics/logging for 
# more details on how to customize your logging configuration. 
LOGGING = { 
    'version': 1, 
    'disable_existing_loggers': False, 
    'filters': { 
        'require_debug_false': { 
            '()': 'django.utils.log.RequireDebugFalse' 
        } 
    }, 
    'handlers': { 
        'mail_admins': { 
            'level': 'ERROR', 
            'filters': ['require_debug_false'], 
            'class': 'django.utils.log.AdminEmailHandler' 
        } 
    }, 
    'loggers': { 
        'django.request': { 
            'handlers': ['mail_admins'], 
            'level': 'ERROR', 
            'propagate': True, 
        }, 
    } 
}

请您参考如下方法:

mongoengine 很旧，似乎没有实现 Django > 1.7 所需的 session 模块。 您可以通过让 sqlite3 默认引擎处理您数据库的 session 部分来解决此问题:

#SESSION_ENGINE = 'mongoengine.django.sessions' # optional 
 
DATABASES = { 
    'default': { 
        'ENGINE': 'django.db.backends.sqlite3', 
        'NAME': os.path.join(PROJECT_DIR, 'db.sqlite3'), 
    } 
}

删除/评论 SESSION_ENGINE 覆盖


  文章来源：
  https://blog.windname.com/post/adigig2b1.html
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