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Book details
Format: epub
File Size: 10.98 MB
Print Length: 450 pages
Publisher: Packt Publishing; 1 edition (14 February 2019)
Sold by: Amazon Asia-Pacific Holdings Private Limited
Language: English
ASIN: B07NSRVNK3

Implement real-world decentralized applications using Python, Vyper, Populus, and Ethereum

Key Features

Stay up-to-date with everything you need to know about the blockchain ecosystem
Implement smart contracts, wallets, and decentralized applications(DApps) using Python libraries
Get deeper insights into storing content in a distributed storage platform
Book Description
Blockchain is seen as the main technological solution that works as a public ledger for all cryptocurrency transactions. This book serves as a practical guide to developing a full-fledged decentralized application with Python to interact with the various building blocks of blockchain applications.

Hands-On Blockchain for Python Developers starts by demonstrating how blockchain technology and cryptocurrency hashing works. You will understand the fundamentals and benefits of smart contracts such as censorship resistance and transaction accuracy. As you steadily progress, you’ll go on to build smart contracts using Vyper, which has a similar syntax to Python. This experience will further help you unravel the other benefits of smart contracts, including reliable storage and backup, and efficiency. You’ll also use web3.py to interact with smart contracts and leverage the power of both the web3.py and Populus framework to build decentralized applications that offer security and seamless integration with cryptocurrencies. As you explore later chapters, you’ll learn how to create your own token on top of Ethereum and build a cryptocurrency wallet graphical user interface (GUI) that can handle Ethereum and Ethereum Request for Comments (ERC-20) tokens using the PySide2 library. This will enable users to seamlessly store, send, and receive digital money. Toward the end, you’ll implement InterPlanetary File System (IPFS) technology in your decentralized application to provide a peer-to-peer filesystem that can store and expose media.

By the end of this book, you’ll be well-versed in blockchain programming and be able to build end-to-end decentralized applications on a range of domains using Python.

What you will learn

Understand blockchain technology and what makes it an immutable database
Use the features of web3.py API to interact with the smart contract
Create your own cryptocurrency and token in Ethereum using Vyper
Use IPFS features to store content on the decentralized storage platform
Implement a Twitter-like decentralized application with a desktop frontend
Build decentralized applications in the shape of console, web, and desktop applications
Who this book is for
If you are a Python developer who wants to enter the world of blockchain, Hands-On Blockchain for Python Developers is for you. The book will be your go-to guide to becoming well-versed with the blockchain ecosystem and building your own decentralized applications using Python and library support.

Table of Contents

Introduction to Blockchain Programming
Smart Contract Fundamentals
Implementing Smart Contract Using Vyper
Interacting With Smart Contract Using Web3
Populus Development Framework
Building a Practical Decentralized Application
Front-end Decentralized Application
Creating Token in Ethereum
Cryptocurrency Wallet
Inter Planetary: A Brave New File System
Using Py-ipfs-api to Connect to Decentralized File System
Implementing Decentralized Application Using IPFS