无法解决系统路径错误；模块缺失

Question

我一直在遇到一个错误，提示说某个模块没有安装，但其实它是安装好的。希望能得到一些帮助。

我查了一下，发现有人建议可以通过扩展系统路径来解决这个错误，把应用程序的目录加进去。我觉得这应该是通过WSGI文件里的sys.path指令来处理的：

import os, sys
sys.path.append('/home/osqa')
sys.path.append('/home/osqa/trunk')
os.environ['DJANGO_SETTINGS_MODULE'] = 'trunk.settings'
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()

错误信息大概是这样的：

[info] mod_wsgi (pid=15737): Attach interpreter ''.
[info] mod_wsgi (pid=15737): Create interpreter 'trunk|'.
[info] [client 172.31.0.6] mod_wsgi (pid=15737, process='OSQA', application='trunk|'): 
Loading WSGI script '/home/osqa/trunk/apache/django.wsgi'.
[error] [client 172.31.0.6] mod_wsgi (pid=15737): Exception occurred processing WSGI 
script '/home/osqa/trunk/apache/django.wsgi'.
[error] [client 172.31.0.6] Traceback (most recent call last):
[error] [client 172.31.0.6]   File "/usr/lib/python2.6/site-
packages/django/core/handlers/wsgi.py", line 230, in __call__
[error] [client 172.31.0.6]     self.load_middleware()
[error] [client 172.31.0.6]   File "/usr/lib/python2.6/site-
packages/django/core/handlers/base.py", line 42, in load_middleware
[error] [client 172.31.0.6]     raise exceptions.ImproperlyConfigured('Error importing  
middleware %s: "%s"' % (mw_module, e))
[error] [client 172.31.0.6] ImproperlyConfigured: Error importing middleware  
forum.middleware.extended_user: "No module named markdown"

而Apache的配置看起来是这样的：

WSGISocketPrefix run/wsgi
<VirtualHost *:80>
ServerAdmin xxx@xxx.com   
DocumentRoot /home/osqa/trunk
ServerName trunk   
CustomLog logs/osqa.access.log common   
ErrorLog logs/osqa.error.log
WSGIScriptAlias / /home/osqa/trunk/apache/django.wsgi
<Directory> /home/osqa/trunk/apache>
            Order deny,allow
            Allow from all
</Directory>

WSGIDaemonProcess OSQA
WSGIProcessGroup OSQA
Alias /m/ /home/osqa/trunk/forum/skins/     
<Directory /home/osqa/trunk/forum/skins>
            Order deny,allow
            Allow from all
</Directory>
Alias /upfiles/ /home/osqa/trunk/forum/upfiles/
    <Directory /home/osqa/trunk/forum/upfiles>
            Order deny,allow
            Allow from all
    </Directory></VirtualHost>

forum.middleware.extended_user的代码大概是这样： from django.contrib.auth.middleware import AuthenticationMiddleware from django.contrib.auth import logout from forum.models.user import AnonymousUser from forum.views.auth import forward_suspended_user import logging

class ExtendedUser(AuthenticationMiddleware):
def process_request(self, request):
    super(ExtendedUser, self).process_request(request)
    if request.user.is_authenticated():           
     try:
            request.user = request.user.user
            if request.user.is_suspended():       
                user = request.user
                logout(request)
                return forward_suspended_user(request, user)
                return None            
                except Exception, e:               
                    import traceback
                    logging.error("Unable to convert auth_user %s to forum_user: \n%s" % (                           request.user.id, traceback.format_exc()
                    ))
    request.user = AnonymousUser()
    return None

django 错误处理 wsgi 模块缺失中间件 sys.path apache配置系统路径

无法解决系统路径错误；模块缺失

1 个回答

撰写回答