l would say either one of these 2 water bowls would be ideal to use in and enclosure with Centralian and Murray Darling Carpet Python's, they a available at Bunnings hardware go to the garden section to see what they have available.
Remember to keep it at the cool end of the enclosure or the water will evaporate to fast, they do need access to some humidity inside their enclosure but not to high.
ln the wild where these 2 Carpet Python's both come from natually,they live along rivers systems and deep inside a hollow gum tree, as the sun reflects on the water during the day it can get quite humid in those areas.
The Cetralian Carpet Python is found along Todd-Ross-Finks Rivers and throughout the MacDonald Ranges, it lives most of the time in hollow trees or deep rock crevises,the Murray Darling Carpet Python is found along the Murray or Darling River, hiding in deep hollow trees, in Central and Northwestern Victoria, and Northeastern South Australia, and Western New South Wales and South Western Queensland.
it can be very hot and dry in these areas but remember along these river systems it can still get quite humid during the day, when the hot sun reflects of the water, and the trees have alot of humidity inside them where the Carpet Python's both hide and rest most of the time.