Walkthrough

A hands-on guide to Deploy Your First Vyper Smart Contract - Learn to write, compile, and deploy your first Vyper contract (`Favorites.vy`) using Remix IDE, reinforcing concepts through active, step-by-step coding.

Vyper Smart Contract Developer Introduction to Python and Vyper
1. Welcome
A comprehensive introduction to Ultimate Smart Contract Security Course: Python Edition - Explore why Python is pivotal for Web3, AI, and Finance, and begin learning Vyper, the secure, Pythonic language for smart contract development. Duration: 5min
2. Best Practices
An essential introduction to Getting Started: Best Practices for Success - Maximize your learning by understanding the benefits of the Updraft platform, leveraging key resources like GitHub, and adopting effective study strategies. Learn how to code along, pace yourself, ask good questions, and use AI critically. Duration: 8min
3. Mox Best Practices
An essential guide to Course Best Practices: Navigation, Resources, and Asking Questions - Learn how to navigate course materials and find code using the main and section-specific GitHub repositories. Discover the right way to ask questions via GitHub Discussions and the essential tools recommended for the course. Duration: 2min
4. Walkthrough
A hands-on guide to Deploy Your First Vyper Smart Contract - Learn to write, compile, and deploy your first Vyper contract (`Favorites.vy`) using Remix IDE, reinforcing concepts through active, step-by-step coding. Duration: 1min
5. Welcome To Remix
An essential walkthrough to Setting Up Your Remix IDE for Vyper - Discover how to configure the Remix browser IDE for Vyper development, covering workspace cleanup, file management, Vyper compiler activation, and cautious interaction with the RemixAI assistant. Duration: 6min
6. Pragma Version
A foundational overview to Defining the Compiler Version in Vyper with Pragma - Learn the mandatory first step in Vyper: declaring the compiler version using `# pragma`. Understand its importance, syntax variations, and why specifying an exact version is best practice for production. Duration: 2min
7. Quiz 7 Quiz
Questions: 6
8. Comments
An essential overview to Working with Comments and Directives in Vyper - Discover how comments (`#`) improve Vyper code clarity and grasp the vital compiler instructions provided by `# pragma` directives. Duration: 1min
9. License
An essential overview to Declaring a Software License in Your Vyper Smart Contract - Learn why and how to declare a software license using `# @license <IDENTIFIER>` right after your pragma directive in Vyper. Understand the significance for legal clarity, compiler warnings, and embracing open-source principles with licenses like MIT. Duration: 1min
10. Compiling
A fundamental introduction to Understanding the Vyper Compilation Process - Discover why Vyper needs translation to EVM bytecode, how to compile using Remix, and the roles of ABI and runtime bytecode. Learn to interpret compiler feedback to fix errors in your contracts. Duration: 2min
11. Contract Design
A foundational primer to Designing Your First Vyper Smart Contract: Planning and Requirements - Understand the crucial first step of defining clear contract goals using comments before writing any code. Learn about essential Vyper file setup like `pragma` and `license` directives. Duration: 1min
12. Vyper Types
A foundational primer to Understanding Basic Data Types in Vyper (v0.4.0) - Discover Vyper's fundamental value types like bool, uint256, and address, including their declaration syntax. Understand static typing and the key v0.4.0 constraint on initializing storage variables. Duration: 4min
13. Quiz 13 Quiz
Questions: 9
14. Visibility
A practical guide to Vyper State Variables: Visibility and Remix VM Deployment - Explore Vyper state variables and the crucial difference between internal (default) and public visibility. Deploy a contract to the Remix VM to interact with auto-generated getter functions. Duration: 4min
15. Functions
An essential introduction to Defining Functions in Vyper with the `def` Keyword - Discover how to define functions using `def`, accept parameters, modify state variables via `self`, and control external access with `@external`. Understand why functions are key to altering contract data and how this differs from reading state. Duration: 5min
16. Func Visibility
A fundamental exploration to Understanding Visibility in Vyper - Learn how Vyper's `public`, `@external`, and `@internal` keywords control access to contract elements. Understand their impact on security, default behaviors, and how functions interact based on visibility. Duration: 2min
17. View And Pure
A fundamental guide to Vyper Functions: Reading vs. Modifying State with @view - Understand the crucial distinction between state-modifying transactions and read-only calls using the `@view` decorator in Vyper. Learn how `@view` optimizes gas costs for off-chain data retrieval and clarifies function intent. Duration: 9min
18. Quiz 18 Quiz
Questions: 7
19. Constructor
A core introduction to Initializing Vyper Contracts with `__init__` - Explore how Vyper's constructor sets up initial state variables at deployment, using `msg.sender`, parameters, and the crucial `@deploy` decorator. Duration: 5min
20. Advanced Funcs
An essential guide to Exploring Advanced Vyper Function Syntax - Master advanced Vyper function features, including decorators (`@external`, `@pure`) and the crucial floor division operator (`//`). Learn to handle placeholders with `pass` and return multiple values efficiently. Duration: 4min
21. Ref Types
A foundational introduction to Vyper Reference Types - Discover Vyper's powerful reference types: fixed-sized lists for ordered arrays, mappings for key-value storage, and structs for custom data structures. Grasp the key distinction between storage and memory when manipulating complex types. Duration: 8min
22. Claude
A practical guide to Overcoming Programming Hurdles with AI Tutors - Learn how to leverage AI assistants like Claude 3.5 to explain complex code snippets, illustrated with a Vyper example. Discover the effectiveness of asking follow-up questions and requesting concrete examples to deepen understanding. Duration: 3min
23. Arrays Lists
A practical guide to Working with Fixed-Size Lists in Vyper - Explore declaring, initializing, reading, and writing fixed-size lists in Vyper, covering zero-based indexing, public access, state updates, and boundary check reverts. Duration: 9min
24. Structs and Strings
An essential guide to Organizing Complex Data with Vyper Structs and Strings - Discover how to define custom data types with `struct` and store text using `String[MAX_SIZE]` in Vyper. Learn to create and manage arrays of these structs to organize complex information within smart contracts. Duration: 8min
25. Quiz 25 Quiz
Questions: 6
26. Workshop
A hands-on exercise for the Vyper Contract Interaction Challenge - Discover how repeated function calls modify contract state, focusing on populating specific indices in Vyper mappings. Learn the mechanics of interacting with deployed Vyper contracts and manipulating structs. Duration: 1min
27. Hash Map
An essential introduction to Mastering Vyper HashMaps for Efficient Data Retrieval - Discover Vyper's `HashMap` structure for efficient key-value data storage and retrieval, contrasting it with index-based lists for direct lookups. Learn the syntax, implementation, and benefits of using meaningful keys over numerical indices. Duration: 4min
28. Recap
A concise recap to Recap: Building the Favorites Vyper Smart Contract - Revisit the core Vyper features used in the `favorites.vy` contract, including structs, state variables (arrays, mappings, `public`), the `__init__` constructor, and function types (`@external`, `@view`). Understand how these building blocks enable on-chain data storage and interaction before deployment. Duration: 2min
29. Tenderly
A hands-on walkthrough to Deploying Your Smart Contract Beyond the Remix VM - Master deploying smart contracts to realistic network environments using MetaMask, leveraging Tenderly Virtual Testnets to bypass public testnet limitations. Duration: 16min
30. Zksync
A focused analysis to Attempting ZKVyper Deployment via Remix - Investigate deploying Vyper contracts to zkSync using Remix, revealing the ZKSYNC plugin's current Solidity-only limitation and the necessity of alternative toolchains. Duration: 0min
31. Share
A simple walkthrough to Congratulations & Share Your Success! - Understand the value of announcing your first smart contract deployment and follow easy steps to share your achievement on X using a pre-filled link. Duration: 1min
32. Evm
A foundational overview to Understanding the Ethereum Virtual Machine (EVM) - Learn what the EVM is, how it executes compiled smart contract code via opcodes, and the meaning of EVM compatibility across blockchains. Understand why verifying contract behavior on specific target chains is crucial before deployment. Duration: 2min
33. Pure And View
A fundamental breakdown to Vyper Function Decorators: Pure vs. View Explained - Distinguish between `@pure` and `@view` decorators in Vyper based on their interaction with state and global variables. Learn why these read-only specifiers are key for efficient and secure smart contracts. Duration: 3min
34. Conditionals
A fundamental guide to Mastering Conditional Logic in Vyper: Using if, elif, and else - Learn how to control smart contract execution flow with `if`, `elif`, and `else` statements in Vyper, covering syntax, testing in Remix, and the `@pure` decorator. Duration: 2min
35. Workshop Pt. 2.
A hands-on workshop for Reinforce Your Vyper Skills - Apply Vyper concepts like state variables, functions, constructors, and structs through targeted exercises. Learn a structured workflow for effective practice, problem-solving, and utilizing resources like AI and community support. Duration: 3min
36. Quiz 36 Quiz
Questions: 9
37. Recap
A foundational review to Understanding Your First Vyper Smart Contract - `favorites.vy` - Revisit core Vyper elements like version pragmas, structs, state variables (types, arrays, maps), visibility, and the `__init__` constructor. Understand external vs. view functions and the use of `self` for interacting with contract state. Duration: 4min

Course Overview

About the course

What you'll learn

The basics of blockchain transactions, how to send and receive money on a blockchain network.

How to write Python based smart contracts using Vyper.

How to read and understand Vyper smart contracts.

Vyper data structures, arrays, structs, hash maps.

How to build a smart contract application and deploy on ZKsync with Moccasin.

Course Description

Who is this course for?

  • Software engineers
  • Web3 developers
  • Fintech developers
  • AI developers
  • Everyone interested in learning Python and smart contracts

Potential Careers

Smart Contract Auditor

$100,000 - $200,000 (avg. salary)

On-chain Data Analyst

$59,000 - $139,000 (avg. salary)

DeFi Developer

$75,000 - $200,000 (avg. salary)

Smart Contract Engineer

$100,000 - $150,000 (avg. salary)

Web3 developer

$60,000 - $150,000 (avg. salary)

Web3 Developer Relations

$85,000 - $125,000 (avg. salary)

Meet your instructors

Patrick Collins

Patrick Collins

Founder at Cyfrin

Web3 engineer, educator, and Cyfrin co-founder. Patrick's smart contract development and security courses have helped hundreds of thousands of engineers kickstarting their careers into web3.

Last updated on June 11, 2025