I just mean that it implies that finding cheap hosting for a ruby webapp is problematic. If the purpose of that statement is to say that more places will support Python than Ruby, then it should probably be worded differently.
I like and am comfortable with both Python and Ruby, and one of the biggest reasons I choose Rails for projects nowadays is Heroku, and I'm not alone. Given this, I really don't see how you could claim Python has any edge when it comes to hosting. If you're concerned about what tons of shared hosting providers have installed, why not just use php?