设置Apache和Python WSGI以使用VirtualEnv(Setting up Apache and Python WSGI to use VirtualEnv)

 我无法让Apache / WSGI使用我的VirtualEnv。 我已将以下两行（服务器上的路径指向目标virtualenv中的站点包的实际位置）添加到我的WSGI文件中： 
 
import site
site.addsitedir('/sites/mysite/virtpy/lib/python2.6/site-packages')
 
 （从http://www.foxhop.net/django-virtualenv-apache-mod_wsgi ）。 但是，当我尝试在浏览器中加载url时，我得到一个500.检查apache日志： 
 
 [Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142]     app =   import_module(appname)
[Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142]   File "/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py", line 35, in import_module
[Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142]     __import__(name)
[Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142] TemplateSyntaxError: Caught ImportError while rendering: No module named tagging
[Sun Jul 17 11:07:11 2011] [debug] mod_deflate.c(615): [client 94.170.105.142] Zlib: Compressed 629 to 387 : URL /
 
 所以我猜想VirtualEnv没有被加载。 任何人都知道如何告诉Apache / WSGI使用正确的virtualenv？ 
 
 UPDATE 
 
 我按照Ken的建议更新了django.wsgi，但现在我在apache日志中发现了以下错误 
 
[Sun Jul 17 16:46:36 2011] [info] [client 94.170.105.142] mod_wsgi (pid=11260, process='', application='igniteflow-django.com:8090|'): Loading WSGI script '/sites/igniteflow/apache/django.wsgi'.
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142] mod_wsgi (pid=11260): Target WSGI script '/sites/igniteflow/apache/django.wsgi' cannot be loaded as Python module.
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142] mod_wsgi (pid=11260): Exception occurred processing WSGI script '/sites/igniteflow/apache/django.wsgi'.
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.106.142] Traceback (most recent call last):
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142]   File "/sites/igniteflow/apache/django.wsgi", line 5, in <module>
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142]     execfile(activate_this, dict(__file__=activate_this))
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142] IOError: [Errno 13] Permission denied: '/root/.virtualenvs/igniteflow/bin/activate_this.py'
 
 我认为这是因为virtualenv是在根和Apache没有权限？ 我把这个文件夹变成root：www-data，但它没有解决问题。 有什么建议么？ 

I'm having trouble getting Apache/WSGI to use my VirtualEnv. I have added the following two lines (path on server is pointing to the actual location of site-packages in the target virtualenv) to my WSGI file:
 
import site
site.addsitedir('/sites/mysite/virtpy/lib/python2.6/site-packages')
 
(from http://www.foxhop.net/django-virtualenv-apache-mod_wsgi). However, when I try to load the url in the browser I get a 500. Checking the apache logs:
 
 [Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142]     app =   import_module(appname)
[Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142]   File "/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py", line 35, in import_module
[Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142]     __import__(name)
[Sun Jul 17 11:07:11 2011] [error] [client 94.170.105.142] TemplateSyntaxError: Caught ImportError while rendering: No module named tagging
[Sun Jul 17 11:07:11 2011] [debug] mod_deflate.c(615): [client 94.170.105.142] Zlib: Compressed 629 to 387 : URL /
 
So I guess that the VirtualEnv isn't being loaded. Anyone know how to tell Apache / WSGI the correct virtualenv to use?
 
UPDATE
 
I have updated django.wsgi following Ken's advice, but now I am getting the following error in the apache log
 
[Sun Jul 17 16:46:36 2011] [info] [client 94.170.105.142] mod_wsgi (pid=11260, process='', application='igniteflow-django.com:8090|'): Loading WSGI script '/sites/igniteflow/apache/django.wsgi'.
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142] mod_wsgi (pid=11260): Target WSGI script '/sites/igniteflow/apache/django.wsgi' cannot be loaded as Python module.
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142] mod_wsgi (pid=11260): Exception occurred processing WSGI script '/sites/igniteflow/apache/django.wsgi'.
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.106.142] Traceback (most recent call last):
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142]   File "/sites/igniteflow/apache/django.wsgi", line 5, in <module>
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142]     execfile(activate_this, dict(__file__=activate_this))
[Sun Jul 17 16:46:36 2011] [error] [client 94.170.105.142] IOError: [Errno 13] Permission denied: '/root/.virtualenvs/igniteflow/bin/activate_this.py'
 
I assume this is because the virtualenv is in root and apache doesn't have permissions? I chowned the folder to root:www-data but it hasn't fixed the problem. Any suggestions?

原文：https://stackoverflow.com/questions/6723494