Are you kidding? Of course you need an enclosure for him. Where is his heat lamp? How is he getting the warmth he needs? Where is his water source? He also needs meat to eat. Mice, depending on the size of him, only about once a week. They need to be heated in warm water to be at the right temp and you need to tempt him with it, wiggle it around etc so he can get it the right way in his mouth to eat. How old is he? How big is he? If you dont want a vicious snake you need to do daily handling, or you might be getting unexpected bites, especially if he has free range of the house. Please tell me it is a nice harmless python and not a dangerous snake?