Dear Kris,
You concern about ink has been brought up in farming related husbandry. Here is a summary of results. http://ohioline.osu.edu/cd-fact/0122.html Most inks in newspapers are non-toxic to most animals. The inks are generally considered stable. Unless the animal grazes on the paper it should not be an issue. I will look for an actual study on this tonight. I know one was done, though unfortunately not on pythons. I'll get you all the information I can.
David