python - 目标 WSGI 脚本 myapp.wsgi' 无法作为 Python 模块加载，ModuleNotFoundError: No module named 'flask'

Question

我尝试使用 Apache Web 服务器端口 80 从服务器运行“hello world”python 应用程序。在这里，我设置了 python 虚拟环境与 python 版本 3.8 压缩。创建了虚拟主机，wsgi 文件，现在尝试在浏览器上调用 URL，我收到 500 内部服务器错误。此处提供了 Apache 错误日志文件详细信息。

1. Ubuntu 18.04,
2. Python 3.8,
3. Apache 2.4

 Virtual host configuration

    #WSGIDaemonProcess MyApp python-home=/usr/local/env/myApp/venv threads=5i
WSGIDaemonProcess Myapp user=www-data group=www-data python-home=/usr/local/env/myApp/venv  python-path=/usr/local/env/myApp threads=5
WSGIScriptAlias /project_wsgi /usr/local/env/myApp/myapp.wsgi
#WSGIProcessGroup myApp
WSGIApplicationGroup Myapp
#WSGIImportScript  %{GLOBAL}
#WSGIPythonHome /usr/local/env/myApp/venv

<VirtualHost *:80>
<Directory /usr/local/env/myApp>
         Require all granted
         Order allow,deny
         Allow from all
LogLevel info
     </Directory>
</VirtualHost>

WSGI file

import os
import sys
sys.path.insert(0, '/usr/local/env/myApp/')

python_home = '/usr/local/env/myApp/venv'
#activate_this = '/usr/local/env/myApp/venv/bin/activate_this.py'
#with open(activate_this) as file_:
#    exec(file_.read(), dict(__file__=activate_this))

from app.myApp import app as application

apache error logs
[Fri Jan 31 16:00:28.990978 2020] [wsgi:info] [pid 58589:tid 140712013437888] mod_wsgi (pid=58589): Starting process 'Myapp' with uid=33, gid=33 and threads=5.
[Fri Jan 31 16:00:28.991819 2020] [wsgi:info] [pid 58589:tid 140712013437888] mod_wsgi (pid=58589): Python home /usr/local/env/myApp/venv.
[Fri Jan 31 16:00:28.991863 2020] [wsgi:info] [pid 58589:tid 140712013437888] mod_wsgi (pid=58589): Initializing Python.
[Fri Jan 31 16:00:28.991926 2020] [mpm_event:notice] [pid 102854:tid 140712013437888] AH00489: Apache/2.4.29 (Ubuntu) mod_wsgi/4.5.17 Python/3.6 configured -- resuming normal operations
[Fri Jan 31 16:00:28.991937 2020] [mpm_event:info] [pid 102854:tid 140712013437888] AH00490: Server built: 2019-09-16T12:58:48
[Fri Jan 31 16:00:28.991952 2020] [core:notice] [pid 102854:tid 140712013437888] AH00094: Command line: '/usr/sbin/apache2'
[Fri Jan 31 16:00:28.993170 2020] [wsgi:info] [pid 58591:tid 140712013437888] mod_wsgi (pid=58591): Initializing Python.
[Fri Jan 31 16:00:28.993874 2020] [wsgi:info] [pid 58590:tid 140712013437888] mod_wsgi (pid=58590): Initializing Python.
[Fri Jan 31 16:00:29.061111 2020] [wsgi:info] [pid 58589:tid 140712013437888] mod_wsgi (pid=58589): Attach interpreter ''.
[Fri Jan 31 16:00:29.088271 2020] [wsgi:info] [pid 58589:tid 140712013437888] mod_wsgi (pid=58589): Adding '/usr/local/env/myApp' to path.
[Fri Jan 31 16:00:29.089075 2020] [wsgi:info] [pid 58591:tid 140712013437888] mod_wsgi (pid=58591): Attach interpreter ''.
[Fri Jan 31 16:00:29.089966 2020] [wsgi:info] [pid 58590:tid 140712013437888] mod_wsgi (pid=58590): Attach interpreter ''.

[Fri Jan 31 16:02:22.375687 2020] [wsgi:info] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395] mod_wsgi (pid=58591, process='', application='Myapp'): Loading WSGI script '/usr/local/env/myApp/myapp.wsgi'.
[Fri Jan 31 16:02:22.381101 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395] mod_wsgi (pid=58591): Target WSGI script '/usr/local/env/myApp/myapp.wsgi' cannot be loaded as Python module.
[Fri Jan 31 16:02:22.381132 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395] mod_wsgi (pid=58591): Exception occurred processing WSGI script '/usr/local/env/myApp/myapp.wsgi'.
[Fri Jan 31 16:02:22.381374 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395] Traceback (most recent call last):
[Fri Jan 31 16:02:22.381400 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395]   File "/usr/local/env/myApp/myapp.wsgi", line 10, in <module>
[Fri Jan 31 16:02:22.381405 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395]     from app.myApp import app as application
[Fri Jan 31 16:02:22.381411 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395]   File "/usr/local/env/myApp/app/myApp.py", line 1, in <module>
[Fri Jan 31 16:02:22.381414 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395]     from flask import Flask
[Fri Jan 31 16:02:22.381436 2020] [wsgi:error] [pid 58591:tid 140711785658112] [client 146.176.178.57:50395] ModuleNotFoundError: No module named 'flask'

我已经在虚拟环境中安装了烧瓶并尝试从 WSGI 文件执行中激活。但是，这对我不起作用。

仅供参考：我已经尝试过虚拟主机上的注释行。

标签： pythonapacheflaskvirtual