在virtualenv中，Django的Apache mod_wsgi错误

我似乎找不到一个好的答案。将其作为WSGIDaemon运行时，谁需要拥有virtualenv？我假设在我的操作系统（Ubuntu 16）上使用www-data，但是我想确定一下。根据这篇文章的答案，尝试一些新的事情来使此事情正常工作...

带有WSGIDaemonProcess的Django Apache配置不起作用

django项目和/或virtualenv文件夹是否需要由apache组拥有？在不指定端口的情况下，需要什么所有权来服务django项目？为什么会出现以下情况？

根本问题：

 Call to 'site.addsitedir()' failed for '(null)'

当我启动apache时，出现此错误。我遵循了一些不同的指南，包括：http : //modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html和https://docs.djangoproject.com/en/1.10/howto/部署/ wsgi / modwsgi /，但成功率为零。

我的虚拟环境路径是 /usr/local/virtualenvs/servicesite

我的django项目路径是/home/addohm/projects/rtservice/servicesite manage.py所在/home/addohm/projects/rtservice/servicesite/servicesite的位置，它留在wsgi.py的位置。

wsgi.py：

SERVICESITE = ['/usr/local/virtualenvs/servicesite/lib/python3.5/site-packages']

import os
import sys
import site

prev_sys_path = list(sys.path)

for directory in SERVICESITE
        site.addsitedir(directory)

new_sys_path = []
for item in list(sys.path):
        if item not in prev_sys_path:
                new_sys_path.append(item)
                sys.path.remove(item)
sys.path[:0] = new_sys_path

"""  **Doesn't seem to work, throwing error in apache logs**
site.addsitedir('/usr/local/virtualenvs/servicesite/lib/python3.5/site-packages')
"""

from django.core.wsgi import get_wsgi_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "servicesite.settings")
application = get_wsgi_application()
DJANGO_PATH =  os.path.join(os.path.abspath(os.path.dirname(__file__)), '..')
sys.path.append(DJANGO_PATH)

apache2.conf

[...]

WSGIDaemonProcess servicesite python-path=/home/addohm/projects/rtservice/servicesite:/usr/local/virtualenvs/servicesite/lib/python3.5/site-packages
WSGIProcessGroup servicesite
WSGIScriptAlias / /home/addohm/projects/rtservice/servicesite/servicesite/wsgi.py

Alias /static/ /home/addohm/projects/rtservice/servicesite/static/
<Directory /home/addohm/projects/rtservice/servicesite/static/>
        Require all granted
</Directory>

<Directory /home/addohm/projects/rtservice/servicesite/servicesite>
        <Files wsgy.py>
                Require all granted
        </Files>
</Directory>

[...]