$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Python 3 in CentOS Gnu/Linux Distro

CentOS Linux Install Python 3 Easy Guide

Hi! The Tutorial shows you Step-by-Step How to Install Python 3 on CentOS 6.x/7.x/8.x/8-Stream/9-Stream GNU/Linux Distribution.

And Python 3 for CentOS eliminates many Quirks that can unnecessarily trip up Beginning Programmers trying to Learn Python.
Python 2.x is legacy, Python 3.x is the Present and Future of the Language!

Especially relevant: to Setup Python 3 in CentOS GNU/Linux it’s enough to Enable the EPEL Repository.

CentOS Linux Install Python 3 Easy Guide - Featured

CentOS Python 3 Installation Guides