ecrecover.py

def ecrecover(h, v, r, s):
    """
    Function recreating solidity's ecrecover

    Args:
        h: The Keccak hash of the msg
        v: The "v" parameter derived from the signed message (ethereum.utils.ecsign)
        r: The "r" parameter derived from the signed message (ethereum.utils.ecsign)
        s: The "s" parameter derived from the signed message (ethereum.utils.ecsign)

    Returns:
        Address of the message signer as a hexidecimal string
    """
    pub = ecrecover_to_pub(h, v, r, s)
    addr = keccak(pub)[-20:]
    addr = encode_hex(addr)
    addr = to_checksum_address(addr)
    return addr