We are leaving behind the Web 2.0 age, which essentially enforces centralization and concentrates too much power in the hands of a small number of influential people, as you may already be aware. Naturally, this poses numerous difficulties and problems in terms of fair data consumption, privacy, and other issues.
With the advent of Web 3.0, there is a sense of autonomy that enforces an honest and open web where every actor can flourish. In essence, it is an effort to decentralise, verify, and secure the web. The ecosystem relies on highly interoperable technologies to do its function and thrives on the concept of removing unreliable third-party intermediaries.
Web 3.0 allows for a kind of peer-to-peer networking paradigm, in contrast to Web 2.0, where each peer retains a copy of the same material on the network and the network as a whole is kept in sync. In this sense, these peers are also referred to as nodes.
Web 3.0 makes it possible for users to verify the accuracy of online information and offers a set of protocols for creating novel applications where users are aware of the amount of information they are giving and receiving. This new version of the internet is more open and supports peer-to-peer apps, autonomous decentralized applications (DApps), cryptographically secure apps, and other types of applications.
Users own and control their data, and transactions are extremely safe. Networks act as a network of interconnected and interoperable data that may be acted upon by smart contracts and interconnected in a decentralized fashion using different protocols.
Web3 libraries
Web3.py
Millions of applications, most of which are decentralized (DApps), are currently powered by the Ethereum blockchain, a decentralized technology. It also fuels the Ether cryptocurrency.
There are numerous ways to connect to the Ethereum blockchain using clients written in various programming languages. In this article, we’ll concentrate on communicating with this technology using the Python-based web3.py module.
You can carry out the second duty—creating clients that communicate with The Ethereum Blockchain—using Web3.py. And not necessarily “clients” that interact with the blockchain by reading data from it, writing new transaction data to it, or putting business logic into smart contracts; instead, “clients” that read data from and write new transaction data to the blockchain. Since you’re using Python, this “client” may, for example, be a server process that runs a smart contract function or a script that scrapes blockchain data. You can generate Ethereum transactions, read and write data from smart contracts, develop smart contracts, and much more with the help of the Web3.py collection of libraries.

The “Remote Procedure Call” protocol, sometimes known as JSON RPC, is how Web3.py communicates with the Ethereum blockchain. A peer-to-peer network of nodes called Ethereum shares all of its data among all of its nodes. In other words, all of the code and data on the network are copied to each node. With JSON RPC, Web3.py enables us to send requests to a specific Ethereum node on behalf of the entire network. As a result, we will be able to read and publish data to the network using just one node. It resembles sending HTTP queries to a web server’s JSON API.
You can install the Web3.py library with pip in your terminal like this:
$ pip install web3
To import and use: from web3 import Web3
Web3fsnpy
A Python module called web3fsnpy is used to communicate with Fusion. Anyone who has used web3.py, which it extends, should be familiar with its API, which is developed from the Web3.py and Web3.js Javascript API. Its functionality is identical to that of Fusion’s web3-fusion-extend Javascript package.
The Fusion Foundation has made it simple to access all the features that make Fusion special by developing a pythonic version of the blockchain’s API. A user can now build assets, send tokens, or generate time locks to unlock the time value of assets and other cryptocurrencies held in Fusion’s blockchain with only a single function call.
Every user now has access to Fusion’s features and may combine them with every other python module, including math and scientific modules and specialized finance modules, to help them construct feature-rich apps because python is simple to learn and platform-independent.