Once I needed to disable the Nginx web server on the same server with iRedmail and install Apache2. And when I tried to start iRedadmin, it did not open, and in the Apache2 logs I saw:
mod_wsgi (pid=233705): Failed to exec Python script file '/opt/www/iredadmin/iredadmin.py'. mod_wsgi (pid=233705): Exception occurred processing WSGI script '/opt/www/iredadmin/iredadmin.py'. Traceback (most recent call last): File "/opt/www/iredadmin/iredadmin.py", line 8, in <module> from libs import iredbase File "/opt/www/iredadmin/libs/iredbase.py", line 5, in <module> import web ImportError: No module named web
I tried installing the web.py web framework for Python:
pip3 install web.py pip3 install web.py==0.62
But it turned out that it was already installed:
Requirement already satisfied: web.py in /usr/local/lib/python3.8/dist-packages (0.62) Requirement already satisfied: cheroot in /usr/local/lib/python3.8/dist-packages (from web.py) (8.5.2) Requirement already satisfied: jaraco.functools in /usr/local/lib/python3.8/dist-packages (from cheroot->web.py) (3.1.0) Requirement already satisfied: six>=1.11.0 in /usr/lib/python3/dist-packages (from cheroot->web.py) (1.14.0) Requirement already satisfied: more-itertools>=2.6 in /usr/local/lib/python3.8/dist-packages (from cheroot->web.py) (8.6.0)
I ended up solving the problem by installing libapache2-mod-wsgi-py3:
sudo apt install libapache2-mod-wsgi-py3
After that, the error disappeared.
Example configuration for iredadmin just in case:
WSGISocketPrefix /var/run/wsgi
WSGIDaemonProcess iredadmin user=iredadmin threads=15
WSGIProcessGroup iredadmin
AddType text/html .py
<Directory /opt/www/iredadmin/>
<IfVersion < 2.4>
Order deny,allow
Allow from all
</IfVersion>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
</Directory>
Alias /iredadmin/static "/opt/www/iredadmin/static/"
WSGIScriptAlias /iredadmin "/opt/www/iredadmin/iredadmin.py/"
See also my articles:
Installing and Configuring the Apache2 Web Server
Installing and configuring iRedMail
Install and configure Nginx