If you buy any webspace it will have PHP installed 99% of the time. There is a huge number of garden-variety webdesigners that server small businesses. These people are used to a combination of PHP + Apache + MySQL + phpMyAdmin. They can install Wordpress on that and know enough JavaScript to modify a gallery script to do what they want.
A Python webspace is much harder to find. Even if they would find one, they could not use it, because online resources for Python are targeted at people that either want to learn to program or already know how to program, not at people that want to use tools as building blocks.