Tokey likes water

[rabernet]

why have I never heard this?

From the caresheet here:

WATER
Your BP should have a readily available supply of fresh water at all times. When possible use a relatively weighted bowl or dish to prevent it from being overturned. Ball pythons are not often known for soaking in their water sources so an oversized container is not necessary unless needed as a means for maintaining adequate humidity. Often snakes who do enter their water supplies for the occasional soak will also defecate in it – so be prepared to clean and replace as needed. It is recommended the water be replaced (not just “topped off”) and the dish cleaned while doing so every few days at a minimum. Bottled water or special additives are not necessary.