Our pythons return to the same place every winter, in the granny flat ceiling. I put some chicken wire up in the entry last year to try and get them to go elsewhere as their urine drips down through the ceiling boards and makes a mess. It stopped the smaller fellas but 'Big Sammie' returned and just pushed and bent the wire out of position to gain entry. A pretty amazing feat of strength, really!
I'm currently devising a different, hopefully effective snake proofing method to put into effect before 'Sleepy Season'
Attachment 157140.