Here's an interesting article on the maximum lengths of Burmese pythons. I've always wondered about the very different lengths that various sources report for many species. There is also debate on the widely accepted length of the longest live snake ever found (1912, Celebes, Indonesia, reticulated python, 32' 9.5").
http://vpi.com/sites/default/files/Barker-et-al_CorrectPythonLengths_2.pdf