Skeleton code for scipy 2021 blockchain workshop

blockchain_skeleton.py

from flask import Flask

class Blockchain():
    def __init__(self):
        self.chain = []
        self.current_transactions = []
        
    def new_block(self):
        # Creates a new Block and adds it to the chain
        pass
    
    def new_transaction(self):
        # Adds a new transaction to the list of transactions
        pass
    
    @staticmethod
    def hash(block):
        # Hashes a Block
        pass

    @property
    def last_block(self):
        # Returns the last Block in the chain
        pass

    def proof_of_work(self):
        # Simple proof of work algorithm 
        pass

    @staticmethod
    def validate_nonce():
        # Checks whether computed nonce is valid or not
        pass


# Create flask application
app = Flask(__name__)

@app.route('/chain')
def display_chain():
    return "Displays full blockchain"

@app.route('/transaction')
def add_new_transaction():
    return "Add a new transaction"

@app.route('/mine')
def mine_new_block():
    return "Mines a new block"

if __name__ == "__main__":
    # Run the flask web server
    app.run(debug=True)