Hands-On Blockchain for Python Developers

Summary

In this chapter, you have learned how to create a real-world application where blockchain technology can shine. This real-world application is a voting application. From a simple voting smart contract where every account can vote, we gradually created a voting application in which only certain accounts can vote using a token system. When building this voting smart contract, we also learned about how to write a script to deploy a smart contract with constructors. After deploying a smart contract, we also learned a feature from smart contracts, which is an event. In a web3 script, we subscribe to this event to learn about things that interest us. Finally, we created helper scripts to create many accounts and send money to other accounts ...