Don't worry about bagging and how to get them out of bags, and catch them again. Just do what a Burmese Karen would do, carry a dah, cleaver or machete with you and chop its head off and leave the head in the field.
They are not poisonous, but they can strangle you.
I grew up on stories of a villager who was being strangled by a python and survived by holding his dah sharp side out--against his body, but I am not sure this will work.
Above all make sure you know how to identify a python, if you try this with a poisonous snake? --
If in doubt call an expert--my relatives in Bangkok have often called the snake catcher, who came on a motor bike and caught it for them.
I would not try it and I don't go around in swamps, but if you do be careful--
wear good shoes or boots, knock out your shoes in the morning, for they often hide in shoes.
And then there's the story, real, of the BOC-MOC Burma Oil Co foreign expert who was bitten by a snake. The Burmese official told me--"They had snake bite kits, but they had all been sold on the black market."
Welcome to the paradise place you love so much.
KMKaung
3-8-2016