带有 apache 的 wsgi 无法读取管道安装的 python 包答案

【问题标题】：wsgi with apache is not able to read piped installed python packages带有 apache 的 wsgi 无法读取管道安装的 python 包
【发布时间】：2019-09-08 17:45:49
【问题描述】：

我得到这个错误：

 sudo service apache2 restart :


    [Thu Apr 18 13:11:02.687353 2019] [mpm_event:notice] [pid 2135:tid 140232732096384] AH00491: caught SIGTERM, shutting down
    [Thu Apr 18 13:11:03.694739 2019] [ssl:warn] [pid 2300:tid 139990910658432] AH01909: ip-*.*.*.*.ec2.internal:443:0 server certificate does NOT include an ID which matches the server name
    [Thu Apr 18 13:11:03.702921 2019] [ssl:warn] [pid 2301:tid 139990910658432] AH01909: ip-*.*.*.*.ec2.internal:443:0 server certificate does NOT include an ID which matches the server name
    [Thu Apr 18 13:11:03.703014 2019] [wsgi:warn] [pid 2301:tid 139990910658432] mod_wsgi: Compiled for Python/2.7.11.
    [Thu Apr 18 13:11:03.703018 2019] [wsgi:warn] [pid 2301:tid 139990910658432] mod_wsgi: Runtime using Python/2.7.12.

然后我进入我们站点的域并进入/var/log/apache2/error.log：

[Thu Apr 18 13:11:03.703598 2019] [mpm_event:notice] [pid 2301:tid 139990910658432] AH00489: Apache/2.4.18 (Ubuntu) OpenSSL/1.0.2g mod_wsgi/4.3.0 Python/2.7.12 configured -- resuming normal operations
        [Thu Apr 18 13:11:03.703617 2019] [core:notice] [pid 2301:tid 139990910658432] AH00094: Command line: '/usr/sbin/apache2'
        [Thu Apr 18 13:11:10.014862 2019] [wsgi:error] [pid 2304:tid 139990600201984] err : No module named boto
        [Thu Apr 18 13:11:10.015214 2019] [wsgi:error] [pid 2304:tid 139990600201984] [client 81.218.184.134:30333] mod_wsgi (pid=2304): Target WSGI script '/home/ubuntu/path/to/my_project/src/my_project/wsgi.py' does not contain WSGI application 'application'.

我正在 AWS EC2 上使用 ubuntu 16.0.4 apache2 和 nod_wsgi，开始启动正在运行的项目（不是新项目）

在我的 wsgi.py 中打印异常我得到：

No module named boto from 

try:
  application = get_wsgi_application()
except Exception as e:
    print "err : {}".format(e)

但我有 boto 安装：

# pip freeze | grep boto
You are using pip version 8.1.1, however version 19.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
boto==2.49.0
boto3==1.9.112
botocore==1.12.16

这是我根据https://docs.djangoproject.com/en/2.2/topics/install/ 配置的其他文件： # cat /etc/apache2/mods-enabled/wsgi.load LoadModule wsgi_module /usr/lib/apache2/modules/mod_wsgi.so

# cat /etc/apache2/mods-enabled/wsgi.conf
<IfModule mod_wsgi.c>


WSGIPassAuthorization on

WSGIScriptAlias / /home/ubuntu/path/to/wsgi.py
WSGIPythonPath  /home/ubuntu/path/to/my_project

<VirtualHost *:80>
        <Directory "/home/ubuntu/path/to//my_project/">
                Require all granted
        </Directory>
</VirtualHost>

 ..

</IfModule>

【问题讨论】：

据我所知，错误是由于管理站点无法启动。我找到的唯一解决方案是sudo service apache2 restart（重新加载并不能解决错误，也不能触摸 wsgi）。
试过了，没有任何改变
那么你需要用你的错误日志更新你的问题..

标签： django python-2.7 apache mod-wsgi wsgi

【解决方案1】：

问题是没有安装所有的python包，在安装了所有缺少的包之后网站工作了

【讨论】：

【解决方案2】：

您的WSGIPythonPath 指令中似乎缺少site-packages 目录。我通常将 python 路径定义为WSGIDaemonProcess 指令的一部分：

WSGIDaemonProcess example \
    display-name=example \
    processes=2 threads=20 \
    maximum-requests=10000 \
    umask=0002 \
    python-path=${SRV}/www:${SRV}/src:${SRV}/venv/prod_142/lib/python2.7/site-packages \
    python-eggs=${SRV}/.python-eggs

WSGIScriptAlias / ${SRV}/www/example/wsgi.py  \
    process-group=example      \
    application-group=%{GLOBAL}

您可以在https://github.com/datakortet/dkbuild-apacheconf（我是作者）的自述文件中看到功能更全面的虚拟主机定义。

【讨论】：