From Zero to Blockchain in Python - Part 1 - Mine

mine.py

def mine(self, reward_address):
    """
    Mines a new block into the chain

    :param reward_address: <str> address where the reward coin will be transferred to
    :return: result of the mining attempt and the new block
    """
    last_block = self.last_block
    index = last_block.index + 1
    previous_hash = last_block.hash

    # Let's start with the heavy duty, generating the proof of work
    nonce = self.generate_proof_of_work(last_block)

    # In the next step we will create a new transaction to reward the miner
    # In this particular case, the miner will receive coins that are just "created", so there is no sender
    self.create_transaction(
        sender="0",
        recipient=reward_address,
        amount=1,
    )

    # Add the block to the new chain
    block = Block(index, self.__current_transactions, nonce, previous_hash)

    if self.add_block(block):
        return block

    return None