main.py

import hashlib #modules

class PeyxwBlock:
    
    def __init__(self, previous_block_hash, transaction_list):

        self.previous_block_hash = previous_block_hash
        self.transaction_list = transaction_list

        self.block_data = f"{' - '.join(transaction_list)} - {previous_block_hash}"
        self.block_hash = hashlib.sha256(self.block_data.encode()).hexdigest()
#data
t1 = "Mayk sends 7 PY to Mark"
t2 = "Mark sends 6.5 PY to James"
t3 = "James sends 3.2 PY to Alisson"
t4 = "Alisson sends 3.2 PY to Noah"

block1 = PeyxwBlock('firstblock', [t1, t2])

print(f"Block 1 data: {block1.block_data}")
print(f"Block 1 hash: {block1.block_hash}")

block2 = PeyxwBlock(block1.block_hash, [t3, t4])

print(f"Block 2 data: {block2.block_data}")
print(f"Block 2 hash: {block2.block_hash}")