python - 内部服务器错误 : Target WSGI script cannot be loaded as Python module AND IOError: [Errno 2] No such file or directory: 'client_secrets.json'

Question

我正在尝试为目录项目运行 Linux 服务器配置。我正在使用:Apache2、Flask 和 SQLAlchemy，我必须安装和配置 PostgreSQL。我尝试运行的站点是公共(public) IP 地址:http://52.27.140.219/ .我很乐意提供更多细节。我是 Linux 的新手，这里讨论了很多事情，但我相信我的工作很强大，除了下面的最终问题。

终端中的重要步骤:

来自: (venv)grader@ip-10-20-8-44:/var/www/catalog/catalog$ sudo service apache2 restart [sudo] 评分者密码: * 重新启动网络服务器 apache2 [确定]

错误日志

(venv)grader@ip-10-20-8-44:/var/www/catalog/catalog$ sudo tail -20 /var/log/apache2/error.log
[Wed Jul 01 16:51:36.873041 2015] [:error] [pid 14600:tid 140294116747008] [client 73.221.39.5:60704] Traceback (most recent call last):
[Wed Jul 01 16:51:36.873059 2015] [:error] [pid 14600:tid 140294116747008] [client 73.221.39.5:60704]   File "/var/www/catalog/catalog.wsgi", line 7, in <module>
[Wed Jul 01 16:51:36.873105 2015] [:error] [pid 14600:tid 140294116747008] [client 73.221.39.5:60704]     from catalog import app as application
[Wed Jul 01 16:51:36.873117 2015] [:error] [pid 14600:tid 140294116747008] [client 73.221.39.5:60704]   File "/var/www/catalog/catalog/__init__.py", line 35, in <module>
[Wed Jul 01 16:51:36.873257 2015] [:error] [pid 14600:tid 140294116747008] [client 73.221.39.5:60704]     open('client_secrets.json', 'r').read())['web']['client_id']
[Wed Jul 01 16:51:36.873279 2015] [:error] [pid 14600:tid 140294116747008] [client 73.221.39.5:60704] IOError: [Errno 2] No such file or directory: 'client_secrets.json'
[Wed Jul 01 16:53:36.405496 2015] [mpm_event:notice] [pid 14596:tid 140294245513088] AH00491: caught SIGTERM, shutting down
[Wed Jul 01 16:53:37.387879 2015] [mpm_event:notice] [pid 14715:tid 140705447798656] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations
[Wed Jul 01 16:53:37.387939 2015] [core:notice] [pid 14715:tid 140705447798656] AH00094: Command line: '/usr/sbin/apache2'
[Wed Jul 01 17:35:23.312436 2015] [mpm_event:notice] [pid 14715:tid 140705447798656] AH00491: caught SIGTERM, shutting down
[Wed Jul 01 17:35:24.360945 2015] [mpm_event:notice] [pid 15120:tid 140719357745024] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations
[Wed Jul 01 17:35:24.361007 2015] [core:notice] [pid 15120:tid 140719357745024] AH00094: Command line: '/usr/sbin/apache2'
[Wed Jul 01 17:35:35.741239 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118] mod_wsgi (pid=15123): Target WSGI script '/var/www/catalog/catalog.wsgi' cannot be loaded as Python module.
[Wed Jul 01 17:35:35.741269 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118] mod_wsgi (pid=15123): Exception occurred processing WSGI script '/var/www/catalog/catalog.wsgi'.
[Wed Jul 01 17:35:35.741302 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118] Traceback (most recent call last):
[Wed Jul 01 17:35:35.741317 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118]   File "/var/www/catalog/catalog.wsgi", line 7, in <module>
[Wed Jul 01 17:35:35.741359 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118]     from catalog import app as application
[Wed Jul 01 17:35:35.741369 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118]   File "/var/www/catalog/catalog/__init__.py", line 35, in <module>
[Wed Jul 01 17:35:35.741483 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118]     open('client_secrets.json', 'r').read())['web']['client_id']
[Wed Jul 01 17:35:35.741501 2015] [:error] [pid 15123:tid 140719262549760] [client 73.221.39.5:61118] IOError: [Errno 2] No such file or directory: 'client_secrets.json'

当我执行 sudo nano/etc/apache2/sites-available/catalog.conf 时，我有:

WSGIPythonPath /var/www/catalog/catalog/venv/:/var/www/catalog/catalog/v$
<VirtualHost *:80>
      ServerName 52.27.140.219
      ServerAdmin admin@52.27.140.219
      ServerAlias c-73-221-39-5.hsd1.wa.comcast.net
      WSGIScriptAlias / /var/www/catalog/catalog.wsgi
      <Directory /var/www/catalog/catalog/>
          Order allow,deny
          Allow from all
      </Directory>
      Alias /static /var/www/catalog/catalog/static
      <Directory /var/www/catalog/catalog/static/>
          Order allow,deny
          Allow from all
      </Directory>
      ErrorLog ${APACHE_LOG_DIR}/error.log
      LogLevel warn
      CustomLog ${APACHE_LOG_DIR}/access.log combined
 </VirtualHost>

Answer 1

不要使用文件的相对路径名。而是构造一个绝对路径名。这是必需的，因为进程的当前工作目录将不是您的代码所在的位置。阅读:

• https://code.google.com/p/modwsgi/wiki/ApplicationIssues#Application_Working_Directory