Sydney: An Australian man will be putting his toilet seat down in the future after discovering a python almost twice his size curled up in the bowl.

Snake wrangler Chris Peberdy was called to a house in rural Virginia near Darwin in far northern Australia after the owner, Erik Rantzau, spotted a 3-metre-long carpet python in his toilet.

"It's not unusual to find snakes of that size in the tropics but you don't find usually them in toilets," Peberdy said.

"He must have come up through a drain. He was cruising around the house at night and returning to the toilet by day."