ResolutionThere are 2 ways to check if Python scripting engine is enabled for a domain:
1. Using the default Parallels Plesk Panel domain page content (http://domain.tld/index.html) - then by the "Python" item. The domain name should be resolved locally at least and the web-content should be Panel domain default content.
The test looks successful if a page with a list of environment variables is shown.
2. Using a simple script like this:
# -*- coding: UTF-8 -*-
# enable debugging
print "Content-Type: text/plain;charset=utf-8"
print "Hello World!"
It is necessary to put the content into a text file and save in the domain web-accessible folder (like $HTTPD_VHOSTS_D/domain.tld/httpdocs) on the server with .py extension (test.py for example). Then try to open the file via browser by the http://domain.tld/test.py URL. The domain name should be resolved locally at least.
The test looks successful if a page shows the "Hello World!" string. If an error or full script listing is visible, it means that Python engine is not configured for the domain properly.