I want to get python code that will work for real life bitcoin mining. Is there anybody who could help me? I have gotten the following script which works as simulator only.

import hashlib
import time

def calculate_hash(block_header):
    return hashlib.sha256(block_header.encode()).hexdigest()

def mine_block(previous_hash, transactions, difficulty):
    nonce = 0
    start_time = time.time()

    while True:
        block_header = f"{previous_hash}{transactions}{nonce}"
        block_hash = calculate_hash(block_header)
       
        if block_hash[:difficulty] == '0' * difficulty:
            end_time = time.time()
            print(f"Block mined!")
            print(f"Hash: {block_hash}")
            print(f"Nonce: {nonce}")
            print(f"Time taken: {end_time - start_time:.2f} seconds")
            print(block_header)
            return block_hash, nonce
       
       
        nonce += 1

# Example usage
previous_hash = '0000000000000000000000000000000000000000000000000000000000000000'
transactions = 'tx1->tx2->tx3'
difficulty = 4  # Number of leading zeros required in the hash

mine_block(previous_hash, transactions, difficulty)