This is a smart contract built for the Lamden blockchain, developed in Python. It is meant to be a contract for a game where users bet an amount of TAU (Lamden token) trying to guess if a certain number will be surpassed or not. If it does, the profit is the amount betted times the number.
The contract is developed in Python using the Contracting library, written by the Lamden Team, you can check it here, Contracting This contract is submited into the Lamden blockchain through the Wallet Chrome Extension.
On the front-end we have Lamden-JS library where we can interact with wallets and connect them with the smart contract, you can follow the documentation through here