tsk tsk.

PHP is simpler. With PHP, you don’t need any library to start working, with Python you need a library (after all, Python wasn’t created for web). In fact, you could start a website on PHP without even NGINX or Apache.
Also, the documentation of PHP is great, it works.
Python
from mod_python import apache
def say(req):
return "Hello, World!"
PHP
<?php
echo "Hello, World!";
?>
Or simply on PHP
Hello, World!
Also, business speaking, its quite easy to find a host that uses PHP, while it’s not as easy to find one for Python. Most SMB doesn’t use Python at all, and big businesses are biased to Java or C#. There are some big companies that use Python but they are the exception.