Big hug coming your way sweetheart.
I also keep snakes, and it is one of my biggest fears that one of them escapes. It must be terrible for you

BUT I have heard A LOT of stories about snake escapes, and you know what? 95% of the time they find them! Don't give up hope, there's a really good chance the python has hardly gone far from her terrarium. Otherwise, look where ever there's warm spots in your house (under/on top of fridges etc.) and leave lines of sand in doorways so if the python crawls through it you'll know she's probably not far. Maybe get a nice hot lamp and place it on the floor and some of her food near it, that usually attracts them. Good luck with it, I really hope you find her.