The snake, which is nearly three-and-a-half metres long, was very hungry as she was just due for a feed when she broke out of her glass cage.
'Hissing and struggling'
Her owner, Paul Tomlinson, warned that she could attack pets - and even small children - if she smelled animals on them.
Tracey, who is named after Paul's wife, was found curled up in some allotments near her house.
Paul said he was delighted to find her.
"She is a little bit upset and a little bit grumpy, hissing and struggling, so I'm going to give her a good feed," he said.