The man tied up a woman and two boys at their home northeast of Adelaide before leaving with the non-poisonous green tree pythons, the Adelaide Advertiser reported Thursday.
No one was injured in the incident.
The suspect was described as Caucasian in his early 30s with a dark goatee and a deep voice. At the time of the robbery, he was wearing dark blue shirt and pants, a brown wide-brimmed hat, dark sunglasses, white shoes and gardening gloves.
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