article:

After studying more than 4,600 Burmese and reticulated pythons on commercial farms in Vietnam and Thailand, they found the snakes had a more efficient food conversion ratio than salmon, pigs, cows, chicken and crickets. The snakes went long periods without eating but did not lose much of their body mass as a result; they also required very little water. On top of all that, they ate food that would not have been used otherwise, known as waste meat, such as wild-caught rodents and stillborn pigs.

says more in article like that. and yet:

Scientists also say more research needs to be conducted on the nutritional content of snake meat, as well as the broader environmental implications—and potential ripple effects—of commercial python farms.