"We thought that by the time we got there he might have finished eating it but it did take a while.
"The venom would have killed the python straight away."
Sally said they stayed at the property for a few hours to allow the snake to finish its meal.
"We just put him into the bag, if you disturb them too much they'll regurgitate their meal and it's just a waste."
Here is a short video of the Eastern Brown eating the Carpet Python
N&S Snake Catcher 0415136941
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Posted by N&S Snake Catcher Ipswich, Brisbane & Logan 0415136941 on Sunday, 1 January 2017
Brown snakes usually eat mice, frogs and lizards, but have been known to eat other snakes, even other brown snakes.
Sally said the incident could have been caused by population pressure leading to competition for food, with the number of sightings of browns increasing in recent years.
"We started in 2015, so we have pretty much doubled what we were doing when we started, " she said.
The incident follows pictures being widely shared online of a large python eating a fully grown wallaby near Cairns on Sunday afternoon.
And a woman was bitten by a wild green tree snake at Australia Zoo north of Brisbane on Monday and was taken to hospital as a precaution.