Index

1. Welcome to Vyper: Why You Need It as a Developer
   • The history of smart contract languages
   • The Solidity dominance & why Vyper exists
   • The philosophy behind Vyper (simplicity, security, and auditability)
   • Real-world use cases where Vyper shines
2. The Building Blocks of Vyper
   • What is a smart contract?
   • The anatomy of a Vyper contract
   • Key differences between Solidity and Vyper (syntax, security, gas efficiency)
   • Why Vyper is Pythonic & what that means for you
3. Diving into Vyper: Syntax and Features
   • Understanding pragma and compiler versions
   • Data types in Vyper (uint256, bytes, structs, mapping, arrays)
   • Variables & storage in Vyper
   • Functions & modifiers (or the lack thereof)
   • Handling events and logging
4. Building & Deploying Smart Contracts
   • Setting up a development environment (Remix, Foundry, Brownie)
   • Writing your first Vyper contract
   • Compiling & deploying on testnets (Ethereum, Berachain, Monad, Polygon)
   • Gas optimization in Vyper (best practices)
5. Interacting with Vyper Contracts
   • Frontend integration: Connecting Vyper contracts to a dApp
   • Using Python, web3.py, and other SDKs for interaction
   • Security considerations: Reentrancy, integer overflows, and safe patterns
6. Project-Based Learning: 5 Boilerplate Contracts
   • Hire Me Contract – Store and showcase resumes on-chain
   • Will You Be My Stablecoin? – A proposal dApp
   • On-Chain Subscription Service – Simple recurring payments in crypto
   • Community Voting System – Governance DAO template
   • On-Chain Proof of Work Badges – Generate NFTs for completed tasks

Chapter 1: Welcome to Vyper – Why You Need It as a Developer

Before we jump into code, let’s take a step back. Why does Vyper even exist?

Imagine this: You’re a Solidity developer. You’ve been building smart contracts, but they’re complex, prone to hidden bugs, and sometimes an absolute gas guzzler. You start questioning—

👉 Do I really need all this extra complexity?

👉 Why does Solidity feel so much like JavaScript when I prefer Python?

👉 How do I make my contracts more secure and easier to audit?

And then, one day, you hear about Vyper.

Vyper was created with three fundamental principles:

1. Readability – Code should be so simple that anyone can audit it.
2. Security – No sneaky workarounds or tricky inheritance patterns.
3. Gas Efficiency – No unnecessary bloat, just optimized execution.