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pythondjangoapacheubuntuimporterror

ImportError: No module named django.core.wsgi (ubuntu)

I am following this guide to configure apache for my django web application: https://docs.djangoproject.com/en/1.9/howto/deployment/wsgi/modwsgi/#basic-configuration

I have installed Django, mod_wsgi-express (the new way) and mod_wsgi for apache on an ubuntu 15.10 server using: 

pip install Django
pip install mod_wsgi
sudo aptitude install libapache2-mod-wsgi

Next I have added the below to: /etc/apache2/apache2.conf

WSGIScriptAlias / /home/user/mysite/mysite/wsgi.py
WSGIPythonPath /home/user/mysite:/home/user/.local/lib/python2.7/site-packages

<Directory /home/user/mysite/mysite>
<Files wsgi.py>
Require all granted
</Files>
</Directory>

But when I start apache I get the below error:

[Sat Mar 26 12:10:06.876025 2016] [wsgi:error] [pid 10622:tid 139806697674496] [client 217.40.250.17:52124]     from django.core.wsgi import get_wsgi_application
[Sat Mar 26 12:10:06.876057 2016] [wsgi:error] [pid 10622:tid 139806697674496] [client 217.40.250.17:52124] ImportError: No module named django.core.wsgi

But that module indeed exists in the path I have supplied in WSGIPythonPath above:

~/.local/lib/python2.7/site-packages/django/core $ cat wsgi.py
import django
from django.core.handlers.wsgi import WSGIHandler

And:

~/.local/lib/python2.7/site-packages $ ll
total 24
drwx------  6 user user 4096 Mar 24 22:25 ./
drwx------  3 user user 4096 Mar 20 20:56 ../
drwxrwxr-x 17 user user 4096 Mar 24 22:25 django/
drwxrwxr-x  2 user user 4096 Mar 24 22:25 Django-1.9.4.dist-info/
drwxrwxr-x  5 user user 4096 Mar 20 20:59 mod_wsgi/
drwxrwxr-x  2 user user 4096 Mar 20 20:59 mod_wsgi-4.4.22.egg-info/

I also tried to validate the version of python the mod_wsgi module was build against:

 /usr/lib/apache2/modules $ ldd mod_wsgi.so
    linux-vdso.so.1 =>  (0x00007ffe50f31000)
    libpython2.7.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 (0x00007f376fbc2000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f376f9a4000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f376f5d9000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f376f3bf000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f376f1bb000)
    libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f376efb7000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f376ecaf000)
    /lib64/ld-linux-x86-64.so.2 (0x00005609838b3000)

So it appears it was build against Python 2.7 which is the same version Django is being installed under.

So why does apache fail to load my application/django?

Solution

  • Based on: http://www.webforefront.com/django/setupapachewebserverwsgi.html

    the www-data user (user running apache folder) must have read access to the folder containing the django installation. I just did a test where I copied the django installation and my web application to: /var/www/test and changed the permission for that folder:

    sudo chgrp -R www-data /var/www/test
sudo chmod -R g+rwx /var/www/test

    and the application now loads.