How can I have a Django application on my main domain, and a PHP application on a subdomain?

I have a Django application hosted on my main domain (example.com), and I now need to host a PHP application on a subdomain (forum.example.com).

In the directory of the main domain, I have the following .htaccess entries:

SetHandler mod_python
PythonPath "/home/.../apps/example'] + sys.path"
PythonOption mod_python.importer.path "['/home/vlive/python']+ sys.path"
PythonHandler django.core.handlers.modpython

#PythonDebug On
SetEnv DJANGO_SETTINGS_MODUL开发者_运维问答E example.settings
SetEnv PYTHON_EGG_CACHE /tmp/egg-cache

At present, when I load the subdomain (forum.example.com) I still see the main site (example.com).

How can I fix this?

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You need to set up your subdomains via the VirtualHost directive and only add the mod_python / mod_wsgi handler in one of the VirtualHosts.

You said you loaded the subdomain and it still shows the main site. Would you mind showing us your Apache's site configuration?

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The most common reason for wrong VirtualHost being selected is a missing NameVirtualHost directive that matches host/port qualifier specified in VirtualHost directive.

What NameVirtualHost directive do you have set? What is the argument to the two VirtualHost configurations?

The general layout would be:

NameVirtualHost *:80

<VirtualHost *:80>
ServerName example.com
...
</VirtualHost>

<VirtualHost *:80>
ServerName forum.example.com
...
</VirtualHost>

These would usually be in the same file for a Linux Apache distribution though.

What have you used?

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As Graham noted, most probably you have wrong VirtualHost configuration.

Double check that there is two different VH with right ServerName and that you don't use * (wildcard) in ServerName and ServerAlias that may overlap with subdomain or it goes AFTER subdomain. Apache only search for first VH that matches, so if you have something like *.example.com above any other subdomain like forum.example.com would not work.

Also mod_wsgi is recommended by django documentation, consider switching to it.