Custom Python Blockchain

1. Let's create the directory structure first Root folder Blockchain, under that Backend, Frontend and client. Under Backend, core and util.
2. Inside cre create a file name block.py and create a class name Block. Inside __init__ method talke Height, Blocksize, BlockHeader, TxCount, Txs variables
3. Create a new module blockheader.py, create a class call BlockHeader. Inside the __init__ method will take version, prevBlockHash, merkleRoot, timestamp, bits and declare self.nonce = 0 , self.blockHash = ''