Django Apache 和 Virtualenv ImportError : No module named site

Question

504页面后来自apache的错误

[info] mod_wsgi (pid=): Python home /var/venv/mybox.
[info] mod_wsgi (pid=): Initializing Python.
ImportError: No module named site

这是一个几乎没有配置的应用程序。

<IfModule mod_wsgi.c>
WSGIDaemonProcess myapp python-home=/var/venv/mybox
WSGIProcessGroup myapp
WSGIScriptAlias / /var/www/html/web/myapp/wsgi.py
WSGISocketPrefix /var/run/wsgi

<Directory /var/www/html/web>
<Files wsgi.py>
Order deny,allow
Allow from all
</Files>
</Directory>
</IfModule>

尽我所能关注每一篇文章和教程。我在 CENTOS6 上。使用虚拟环境 python 2.7 默认系统环境是 2.6

$ ldd /etc/httpd/modules/mod_wsgi.so
  linux-vdso.so.1 =>  (0x00007ffc06174000)

mywsgi.py

 import os,sys     
 from django.core.wsgi import get_wsgi_application     
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myapp.settings")
 sys.path.insert(0,'/var/www/html/web')
 activate_this = '/var/venv/mybox/bin/activate_this.py'
 execfile(activate_this, dict(__file__=activate_this))
 application = get_wsgi_application()

PYHTONHOME 未设置

Answer 1

在 mod_wsgi 中使用虚拟环境的文档可以在以下位置找到:

http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html

在您的情况下，最重要的是以下部分:

Virtual Environment and Python Version

在该部分中，它指出:

When using a Python virtual environment with mod_wsgi, it is very important that it has been created using the same Python installation that mod_wsgi was originally compiled for. It is not possible to use a Python virtual environment to force mod_wsgi to use a different Python version, or even a different Python installation.

You cannot for example force mod_wsgi to use a Python virtual environment created using Python 3.5 when mod_wsgi was originally compiled for Python 2.7. This is because the Python library for the Python installation it was originally compiled against is linked directly into the mod_wsgi module.

所以最有可能发生的事情是 mod_wsgi 是为 Python 2.6 编译的。在这种情况下，您不能强制它使用从 Python 2.7 创建的 Python 虚拟环境。当你这样做时，你会得到你看到的关于 site 的错误。模块丢失。
您需要从系统包中卸载 mod_wsgi 并从源代码安装 mod_wsgi，针对 Python 2.7 进行编译。最简单的方法可能是使用 pip install方法如中所述:

https://pypi.python.org/pypi/mod_wsgi

运行 pip install将其安装在您的虚拟环境中，然后按照“连接到 Apache 安装”部分中有关配置 Apache 以使用它的说明进行操作。