sudo apt-get install libapache2-mod-wsgi-py3 apache2-dev

mkaro@asus:~$ sudo apt-get autoremove
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 61 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up libapache2-mod-wsgi-py3 (4.6.8-1ubuntu3) ...
dpkg: error processing package libapache2-mod-wsgi-py3 (--configure):
 installed libapache2-mod-wsgi-py3 package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 libapache2-mod-wsgi-py3
E: Sub-process /usr/bin/dpkg returned an error code (1)

sudo apt-get purge --auto-remove libapache2-mod-wsgi-py3
+
sudo apt-get autoremove

AH00051 ... exit signal Segmentation fault (11), possible coredump in /etc/apache2

[Wed Apr 14 14:04:36.092257 2021] [wsgi:error] [pid 12290] [client 127.0.0.1:58962] Truncated or oversized response headers received from daemon process 'perso': /var/www/html/perso/run.wsgi, referer: http://perso/auth/login
[Wed Apr 14 14:04:36.753331 2021] [core:notice] [pid 12151] AH00051: child pid 12285 exit signal Segmentation fault (11), possible coredump in /etc/apache2

127.0.0.1 - - [14/Apr/2021:14:04:29 +0300] "POST /auth/login HTTP/1.1" 200 2883 "http://perso/auth/login" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36"
127.0.0.1 - - [14/Apr/2021:14:04:35 +0300] "POST /auth/login HTTP/1.1" 302 941 "http://perso/auth/login" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36"
127.0.0.1 - - [14/Apr/2021:14:04:35 +0300] "GET /provision HTTP/1.1" 500 795 "http://perso/auth/login" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36"
127.0.0.1 - - [14/Apr/2021:14:05:27 +0300] "-" 408 0 "-" "-"

LoadModule wsgi_module "/var/www/html/perso/venv/lib/python3.8/site-packages/mod_wsgi/server/mod_wsgi-py38.cpython-38-x86_64-linux-gnu.so"
WSGIPythonHome "/var/www/html/perso/venv"

WSGIRestrictStdout Off
WSGIScriptReloading On
WSGIPathAuthorization On

<VirtualHost *:80>
    #ServerName localhost
    ServerAdmin webmaster@localhost

    DocumentRoot "/var/www/html/perso"

    WSGIDaemonProcess perso user=mkaro group=mkaro processes=2 threads=5 display-name=%{GROUP}

    #Alias /favicon.ico /var/www/html/perso/favicon.ico
    Alias /static /var/www/html/perso/app/static

    WSGIScriptAlias / /var/www/html/perso/run.wsgi

    <Directory /var/www/html/perso/>
        WSGIProcessGroup perso
        WSGIApplicationGroup %{GLOBAL}
        #Order allow,deny
        #Allow from all
        AllowOverride All
        Require all granted
    </Directory>

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

def application(environ, start_response):
    status = '200 OK'
    output = 'This is my Web Application!'

    response_headers = [('Content-type', 'text/plain'), ('Content-Length', str(len(output)))]
    start_response(status, response_headers)

    return [output.encode('utf-8')]

python_home = '/var/www/html'

app_path = '%s/perso' % python_home

activate_this = '%s/venv/bin/activate_this.py' % app_path
with open(activate_this) as file_:
    exec(file_.read(), dict(__file__=activate_this))

import os
import sys

sys.path.insert(0, python_home)

root = os.path.dirname(os.path.abspath(__file__))
if root not in sys.path:
    sys.path.append(root)

from app import create_app
application = create_app(os.getenv('APP_CONFIG') or 'production')

sudo pip3 install mod_wsgi
mod_wsgi-express.exe module-config

LoadModule wsgi_module "/usr/local/lib/python3.8/dist-packages/mod_wsgi/server/mod_wsgi-py38.cpython-38-x86_64-linux-gnu.so"

WSGIPythonPath "/var/www/html/perso/venv:/usr/local"