developing a simple sandwich bot

I need a Python code to listen for incoming pending transactions on Uniswap V2's router contract and fetch a(any transaction. it doesn't matter). The code should execute two transactions using a sandwich contract, placing the fetched transaction between them, and then send the bundle to a block builder like Titan Builder or Flashbots.
The sandwich contract should be simple, designed to swap two tokens and include a function to recover tokens if needed.
If implemented correctly, the transactions will appear in https://eigenphi.io as a front-run, victim, and back-run sequence. They'll also be visible on any block explorer, with the victim transaction positioned precisely between my two transactions.