Problems with mod_wsgi apache django configuration Errors: 500 Internal Server Error; ModuleNotFoundError: No module named 'mod_wsgi.server'; 'mod_wsgi' is not a package

[Patrick Carra]

Hello I am attempting to configure a django application using mod_wsgi and apache2.  My current installation of mod_wsgi and apache is:

[root@6e5907c50b36 modules]# strings mod_wsgi.so | grep -w -A 2 "wsgi_init"

wsgi_init

4.6.5

mod_wsgi/%s

[root@6e5907c50b36 modules]# httpd -version

Server version: Apache/2.4.6 (CentOS)

Server built:   Aug  8 2019 11:41:18

My httpd.conf configuration for wsgi is:

# Supplemental configuration
#
# Load config files in the "/etc/httpd/conf.d" directory, if any.
LoadModule wsgi_module modules/mod_wsgi.so
#IncludeOptional conf.d/*.conf
#
WSGIScriptAlias / /home/db_user/ciopsdb/ciopsdb/wsgi.py
WSGIPythonHome /home/db_user/ciopsdb/venv
WSGIPythonPath /home/db_user/ciopsdb


<Directory /home/db_user/ciopsdb/ciopsdb>
<Files wsgi.py>
Require all granted
</Files>
</Directory>

For django my version and configuration I am using a virtual environment. I previously had mod_wsgi 4.6.8 installed via pip but I was getting an error that wsgi could not accept the request.GET method I was passing to use a django-filter.  While I was using the django development server this had worked fine so I assumed that there was a problem with the configuration/version of mod_wsgi inside my virtual python environment.   I removed the mod_wsgi package from Python and manually installed mod_wsgi 4.6.5 into apache itself.  Django configs and versions below:

(venv) [db_user@6e5907c50b36 ciopsdb]$ pip freeze

Django==2.2.4

django-filter==2.2.0

django-tables2==2.1.1

djangorestframework==3.10.3

psycopg2==2.8.4

psycopg2-binary==2.8.4

pytz==2019.3

sqlparse==0.3.0

(venv) [db_user@6e5907c50b36 ciopsdb]$ cat wsgi.py
"""
WSGI config for ciopsdb 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


from django.core.wsgi import get_wsgi_application


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


application = get_wsgi_application()

With this current configuration the error I get from the /etc/httpd/logs/error_log is:

[Thu Nov 07 13:54:30.304640 2019] [wsgi:info] [pid 64753] mod_wsgi (pid=64753): Create interpreter '*****|'.

[Thu Nov 07 13:54:30.318061 2019] [wsgi:info] [pid 64753] mod_wsgi (pid=64753): Adding '/home/db_user/ciopsdb' to path.

[Thu Nov 07 13:54:30.318600 2019] [wsgi:info] [pid 64753] [client 142.136.2.11:58968] mod_wsgi (pid=64753, process='', application='****'|'): Loading Python script file '/home/db_user/ciopsdb/ciopsdb/wsgi.py'., referer: http://*****

[Thu Nov 07 13:54:30.551588 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968] mod_wsgi (pid=64753): Failed to exec Python script file '/home/db_user/ciopsdb/ciopsdb/wsgi.py'., referer: http://*****

[Thu Nov 07 13:54:30.551638 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968] mod_wsgi (pid=64753): Exception occurred processing WSGI script '/home/db_user/ciopsdb/ciopsdb/wsgi.py'., referer: http://*****

[Thu Nov 07 13:54:30.552417 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968] Traceback (most recent call last):, referer: http://*****

[Thu Nov 07 13:54:30.552478 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "/home/db_user/ciopsdb/ciopsdb/wsgi.py", line 16, in <module>, referer: http://*****

[Thu Nov 07 13:54:30.552485 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]     application = get_wsgi_application(), referer: http://*****

[Thu Nov 07 13:54:30.552492 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "/home/db_user/ciopsdb/venv/lib64/python3.6/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application, http://*****

[Thu Nov 07 13:54:30.552496 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]     django.setup(set_prefix=False), referer: http://*****

[Thu Nov 07 13:54:30.552501 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "/home/db_user/ciopsdb/venv/lib64/python3.6/site-packages/django/__init__.py", line 24, in setup, referer: http://*****

[Thu Nov 07 13:54:30.552511 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]     apps.populate(settings.INSTALLED_APPS), referer: http://*****

[Thu Nov 07 13:54:30.552517 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "/home/db_user/ciopsdb/venv/lib64/python3.6/site-packages/django/apps/registry.py", line 91, in populate, referer: http://*****

[Thu Nov 07 13:54:30.552521 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]     app_config = AppConfig.create(entry), referer: http://*****

[Thu Nov 07 13:54:30.552526 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "/home/db_user/ciopsdb/venv/lib64/python3.6/site-packages/django/apps/config.py", line 136, in create, referer: http://*****

[Thu Nov 07 13:54:30.552529 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]     import_module(entry), referer: http://*****

[Thu Nov 07 13:54:30.552534 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module, referer: http://*****

[Thu Nov 07 13:54:30.552538 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]     return _bootstrap._gcd_import(name[level:], package, level), referer: http://*****

[Thu Nov 07 13:54:30.552543 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "<frozen importlib._bootstrap>", line 994, in _gcd_import, referer: http://*****

[Thu Nov 07 13:54:30.552549 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "<frozen importlib._bootstrap>", line 971, in _find_and_load, referer: http://*****

[Thu Nov 07 13:54:30.552554 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968]   File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked, referer: http://*****

[Thu Nov 07 13:54:30.552569 2019] [wsgi:error] [pid 64753] [client 142.136.2.11:58968] ModuleNotFoundError: No module named 'mod_wsgi.server'; 'mod_wsgi' is not a package, referer: http://*****

In my browser I get this message:

500 Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

I am new to linux/apache/mod_wsgi/ but have a little experience with Python.  Any help and suggestions are appreciated as I have looked at many forum posts and documentation to try to figure this out but have exhausted my current understanding of these things.  Thank you in advance!

[Graham Dumpleton]

Remove 'mod_wsgi.server' from installed apps in the Django settings file. It is only relevant when using mod_wsgi-express, not when hosting with mod_wsgi integrated into Apache manually.

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[Patrick Carra]

Graham

BRILLIANT!!!!!  Thank you so much!