django - 在 sys.path.append() 之后未导入模块

Question

我正在尝试部署我的 django 应用程序。像许多其他人一样，我面临“缺少” django 的问题，虽然它存在，但没有名为 django 的模块。

我必须安装版本 2 的 Django，而不是最新版本，它被安装到'/home/ivan/.local/lib/python3.5/site-packages/'.

我配置了我的 apache，wsgi.py 看起来像这样：

"""
WSGI config for mysite project.

It exposes the WSGI callable as a module-level variable named ``application``.

For more information on this file, see
https://docs.djangoproject.com/en/2.2/howto/deployment/wsgi/
"""

import os
import sys
sys.path.append('/home/ivan/.local/lib/python3.5/site-packages/')
print(sys.path)
# import /home/ivan/.local/lib/python3.5/site-packages/django
from django.core.wsgi import get_wsgi_application

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')

application = get_wsgi_application()

当我在终端中键入 python3 并执行此操作时：

>>> import django
>>> django.__path__
['/home/ivan/.local/lib/python3.5/site-packages/django']

所以我得到了 django 模块的路径并附加了它，我也尝试了：

sys.path.insert(0, '/home/ivan/.local/lib/python3.5/site-packages/django')

我仍然得到 500 错误，烦人：

[Tue Apr 21 13:12:41.861348 2020] [wsgi:error] [pid 29470] [remote 185.201.90.67:1131] Traceback (most recent call last):
[Tue Apr 21 13:12:41.861379 2020] [wsgi:error] [pid 29470] [remote 185.201.90.67:1131]   File "/var/www/mysite/mysite/wsgi.py", line 15, in <module>
[Tue Apr 21 13:12:41.861384 2020] [wsgi:error] [pid 29470] [remote 185.201.90.67:1131]     from django.core.wsgi import get_wsgi_application
[Tue Apr 21 13:12:41.861397 2020] [wsgi:error] [pid 29470] [remote 185.201.90.67:1131] ImportError: No module named 'django'

为什么wsgi不能正常工作？我在这里做错了什么？为什么解释器在我通过 sys.path.insert() 强迫他之后找不到模块？

非常感谢提前！

更新一

print(sys.path)wsgi 内部返回：

    ['/var/www/mysite', '/usr/lib/python35.zip', '/usr/lib/python3.5', 

'/usr/lib/python3.5/plat-x86_64-linux-gnu', '/usr/lib/python3.5/lib-dynload', 

'/usr/local/lib/python3.5/dist-packages', 

'/usr/lib/python3/dist-packages',

 '/home/ivan/.local/lib/python3.5/site-packages/']

更新二

由于我正在尝试部署该应用程序，因此无论我如何解决它。感谢@KolaB 对 virtualenv 的建议。

我刚刚做到了，现在我有了这个结构：

├── mysite
├── requirements.txt
└── venvdjang

venvdjang 是一个带有虚拟解释器的目录。我还安装了 djangosource /venvdjang/bin/activate

pip install -r requirements.txt

现在，我如何告诉我的 wsgi 和 apache2 我想使用 virtualenv？

更新三

谢谢大家的帮助！

我在生产中有一个带有烧瓶应用程序的 VPS (www.example.com) 现在我必须在子域 - django 上部署另一个 Web 应用程序。(www.sub.example.com)

这是 django 的配置。

/etc/apache2/sites-available/mysite.conf

<VirtualHost *:80>
    ServerName sub.example.com
    ServerAlias www.sub.example.com
    ServerAdmin [e-mail]
    #DocumentRoot /var/www/mysite

    ErrorLog ${APACHE_LOG_DIR}/mysite-error.log
    CustomLog ${APACHE_LOG_DIR}/mysite-access.log combined

    #DocumentRoot /var/www/mysite/index.html

    WSGIDaemonProcess mysite processes=2 threads=25 python-path=/var/www/mysite
    WSGIProcessGroup mysite
    WSGIScriptAlias / /var/www/mysite/mysite/wsgi.py

    Alias /robots.txt /var/www/mysite/static/robots.txt
    Alias /favicon.ico /var/www/mysite/static/favicon.ico
    Alias /static/ /var/www/mysite/static/
    Alias /static/ /var/www/mysite/media/

    <Directory /var/www/mysite/mysite>
        <Files wsgi.py>
            Require all granted
        </Files>
    </Directory>

    <Directory /var/www/mysite/static>
        Require all granted
    </Directory>

    <Directory /var/www/mysite/media>
        Require all granted
    </Directory>
</VirtualHost>

这是烧瓶的配置

 /etc/apache2/sites-available/FlaskApp-le-ssl.conf

<IfModule mod_ssl.c>
<VirtualHost *:443>
                ServerName www.example.com 
                ServerAdmin [e-mail]
                WSGIScriptAlias / /var/www/FlaskApp/flaskapp.wsgi
                <Directory /var/www/FlaskApp/FlaskApp/>
                        Order allow,deny
                        Allow from all
                </Directory>
                Alias /static /var/www/FlaskApp/FlaskApp/static
                <Directory /var/www/FlaskApp/FlaskApp/static/>
                        Order allow,deny
                        Allow from all
                </Directory>
                ErrorLog ${APACHE_LOG_DIR}/error.log
                LogLevel warn
                CustomLog ${APACHE_LOG_DIR}/access.log combined
Include /etc/letsencrypt/options-ssl-apache.conf
ServerAlias  example.com 
SSLCertificateFile /etc/letsencrypt/live/example.com 
--p1ai/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/example.com--p1ai/privkey.pem
</VirtualHost>
</IfModule>
<IfModule mod_ssl.c>
<VirtualHost *:80>
                ServerName example.com 
                Redirect / https://www.example.com 
                ServerAdmin [e-mail]
                WSGIScriptAlias / /var/www/FlaskApp/flaskapp.wsgi
                <Directory /var/www/FlaskApp/FlaskApp/>
                        Order allow,deny
                        Allow from all
                </Directory>
                Alias /static /var/www/FlaskApp/FlaskApp/static
                <Directory /var/www/FlaskApp/FlaskApp/static/>
                        Order allow,deny
                        Allow from all
                </Directory>
                ErrorLog ${APACHE_LOG_DIR}/error.log
                LogLevel warn
                CustomLog ${APACHE_LOG_DIR}/access.log combined
RewriteEngine on
# Some rewrite rules in this file were disabled on your HTTPS site,
# because they have the potential to create redirection loops.

# RewriteCond %{SERVER_NAME} = example.com 
# RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]

#RewriteCond %{SERVER_PORT} !^443$
#RewriteRule .* https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L]
</VirtualHost>
</IfModule>

操作系统 - 几年前安装了 Ubuntu 16.04 mod_wsgisudo apt-get install

更新四

我WSGIDaemonProcess python-home按照@Alasdair 的说法进行了更改，python-home=/var/www/venvdjang但没有成功。

现在如果我在终端运行source /var/www/venvdjang/bin/activate

    (venvdjang) ivan@server:/var/www$ python
    Python 3.5.2 (default, Oct  8 2019, 13:06:37)
    [GCC 5.4.0 20160609] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import django
    >>> import sys
    >>> sys.path
    ['', '/var/www/venvdjang/lib/python35.zip', '/var/www/venvdjang/lib/python3.5', 

'/var/www/venvdjang/lib/python3.5/plat-x86_64-linux-gnu', 

'/var/www/venvdjang/lib/python3.5/lib-dynload', 

'/usr/lib/python3.5', 

'/usr/lib/python3.5/plat-x86_64-linux-gnu', 

'/var/www/venvdjang/lib/python3.5/site-packages']
>>>

但是我的 wsgi.py 在删除所有sys.path.append()员工之后仍然返回print(sys.path)：

['/var/www/venvdjang', 

'/usr/lib/python35.zip',

 '/usr/lib/python3.5', 

'/usr/lib/python3.5/plat-x86_64-linux-gnu',

 '/usr/lib/python3.5/lib-dynload', 

'/usr/local/lib/python3.5/dist-packages',

 '/usr/lib/python3/dist-packages']

就像他仍然去系统解释器一样......为什么我不能引用正确的 virtualenv ？

标签： djangopython-3.xapache2django-2.2