It would be a good idea to specify the type of python as a lot of ours will come from relatively dry environments. You don't really need nor want high humidity for them.
If it comes from an arid environment you could consider some sort of succulent plant if you really want to go that way, just be prepared for it to potentially be trampled.
Be aware if you plant the enclosure then you will likely need to work out a light source for the plant that does not interfere with the snake badly.