python - WSGIDaemon 进程语法错误 - Mod_wsgi django ImportError : No module named django. core.wsgi

Question

我刚刚设置了一个测试平台，用于将我们的网站从托管共享托管迁移到 Digital Ocean。我建立了这项服务，因为我想了解正在发生的事情。目前，django 系统可以工作，我可以运行映射到 0.0.0.0:8000 的开发服务器并提供内容，但这显然不会影响生产，而且我想让 apache 工作。目前正在开发一个名为“env”的虚拟环境，非常富有想象力。

我已关注Digital Ocean quick start为此，但我怀疑我是否需要知道比它提供的更多的东西。 Apache 已安装并正确运行(至少在最初) - 当我访问 Droplet 的根 IP 时，我得到“它有效!”信息。因此，这两个位都有效，但是当我修改 nano/etc/apache2/sites-enabled/000-default 并重新启动时，我收到以下消息:

Syntax error on line 2 of /etc/apache2/sites-enabled/000-default:
Invalid command 'WSGIDaemonProcess', perhaps misspelled or defined by a module not included in the server configuration
Action 'configtest' failed.
The Apache error log may have more information.
 failed!

所以它在以下配置的第一行失败(两个路径都是正确的):

WSGIDaemonProcess processname python-path=/var/www/path/tosite:/var/www/env/lib/python2.7/site-packages
WSGIProcessGroup processname
WSGIScriptAlias / /var/www/path/to/project/wsgi.py

我最初得到的回溯是这样的:

[Tue Dec 02 13:47:48 2014] [notice] Apache/2.2.22 (Debian) mod_wsgi/3.3 Python/2.7.3 configured -- resuming normal operations
[Tue Dec 02 13:47:50 2014] [error] [clientIP] mod_wsgi (pid=18936): Target WSGI script '/var/www/project/projectv2/projectv2/wsgi.py' cannot be loaded as Python module.
[Tue Dec 02 13:47:50 2014] [error] [clientIP] mod_wsgi (pid=18936): Exception occurred processing WSGI script '/var/www/project/projectv2/projectv2/wsgi.py'.
[Tue Dec 02 13:47:50 2014] [error] [clientIP] Traceback (most recent call last):
[Tue Dec 02 13:47:50 2014] [error] [clientIP]   File "/var/www/project/projectv2/projectv2/wsgi.py", line 15, in <module>
[Tue Dec 02 13:47:50 2014] [error] [clientIP]     from django.core.wsgi import get_wsgi_application
[Tue Dec 02 13:47:50 2014] [error] [clientIP] ImportError: No module named django.core.wsgi
[Tue Dec 02 13:47:51 2014] [error] [clientIP] mod_wsgi (pid=18936): Target WSGI script '/var/www/project/projectv2/projectv2/wsgi.py' cannot be loaded as Python module.
[Tue Dec 02 13:47:51 2014] [error] [clientIP] mod_wsgi (pid=18936): Exception occurred processing WSGI script '/var/www/project/projectv2/projectv2/wsgi.py'.
[Tue Dec 02 13:47:51 2014] [error] [clientIP] Traceback (most recent call last):
[Tue Dec 02 13:47:51 2014] [error] [clientIP]   File "/var/www/project/projectv2/projectv2/wsgi.py", line 15, in <module>
[Tue Dec 02 13:47:51 2014] [error] [clientIP]     from django.core.wsgi import get_wsgi_application
[Tue Dec 02 13:47:51 2014] [error] [clientIP] ImportError: No module named django.core.wsgi
[Tue Dec 02 13:47:51 2014] [error] [clientIP] mod_wsgi (pid=18936): Target WSGI script '/var/www/project/projectv2/projectv2/wsgi.py' cannot be loaded as Python module.
[Tue Dec 02 13:47:51 2014] [error] [clientIP] mod_wsgi (pid=18936): Exception occurred processing WSGI script '/var/www/project/projectv2/projectv2/wsgi.py'.
[Tue Dec 02 13:47:51 2014] [error] [clientIP] Traceback (most recent call last):
[Tue Dec 02 13:47:51 2014] [error] [clientIP]   File "/var/www/project/projectv2/projectv2/wsgi.py", line 15, in <module>
[Tue Dec 02 13:47:51 2014] [error] [clientIP]     from django.core.wsgi import get_wsgi_application
[Tue Dec 02 13:47:51 2014] [error] [clientIP] ImportError: No module named django.core.wsgi

我tried this very helpful answer ，但似乎没有什么区别；一件关键的事情是，我现在无法像平常那样重置 apache 服务器，因为它不会启动 - 所以我不确定我的更改是否生效。

我还删除并重新安装了 mod_wsgi 以查看是否存在问题，使用 apt-get install libapache2-mod-wsgi 重新安装，并尝试 chmod 755 wsgi.py 文件。

顺便说一句 - 我之前使用过的所有 apache 版本都有一个 httpd.conf 文件，但这似乎没有 - 运行 ps -ef | grep apache 仅显示错误日志和上面提到的 000-default 。

完整的默认值 000 是:

<VirtualHost *:80>
        WSGIDaemonProcess project python-path=/var/www/project/projectv2:/var/www/env/lib/python2.7/site$
        WSGIProcessGroup project
        WSGIScriptAlias / /var/www/project/projectv2/projectv2/wsgi.py
        ServerAdmin system@project.com

        DocumentRoot /var/www
        <Directory />
                Options FollowSymLinks
                AllowOverride None
        </Directory>
        <Directory /var/www/>
                Options Indexes FollowSymLinks MultiViews
                AllowOverride None
                Order allow,deny
                allow from all
        </Directory>

        ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
        <Directory "/usr/lib/cgi-bin">
                AllowOverride None
                Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
                Order allow,deny
                Allow from all
        </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log

        # Possible values include: debug, info, notice, warn, error, crit,
        # alert, emerg.
        LogLevel warn

        CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

同样，我没有在 shell 中使用 mod_python (根据 Graeme's comment on the main question 和 I can import django.core.wsgi manually 。

Answer 1

正如评论中提到的，您需要在重新安装 mod-wsgi 后启用它，方法是 sudo a2enmod wsgi。