Live Plants = Less ventilation?

[Tiny Boidae]

So, I'm brainstorming and planning and ordering the supplies for my Beauty's cage (although it won't be assembled until I move, I just like to have everything now as it spreads out my money spending), and I was thinking about getting some hardy plants that it PROBABLY won't smother (like some pothos, a fern or two... still not sure exactly what yet), and it got me thinking. If I plant the cage with live plants, will I need as many, if any, ventilation holes as the plants produce oxygen for the snake, and the snake produces carbon dioxide for the plants. It sounds a little naive to me, but I'm just curious if this is logical thinking.