Web3.py Simple Storage

Installing VSCode, Python, and Web3

• Developer Bootcamp Setup Instructions (metamask, vscode, python, nodejs)
• VSCode
• VSCode Crash Course
• Extensions
• Short Cuts:
• VSCode Shortcuts
• Python
• Install Troubleshooting
• Terminal
• Making a directory/Folder
• Opening the folder up with VSCode
• Creating a new file
• Syntax Highlights
• Remember to save!
• Setting linting compile version
• VSCode Solidity Settings
• Formatting & Format on Save
• Solidity Prettier
• Python Black
• pip

h2Our First Python Script with Web3.py - Deploying a Contract

• Reading our solidity file
• Running a Python Script in the Terminal
• Linux Shortcuts
• Compiling in Python
• py-solc-x
• compile_standard
• Colorized Brackets
• JSON ABI
• Saving Compiled Code
• Formatting JSON
• Deploying in Python
• Get Bytecode
• Get ABI
• Choose Blockchain to Deploy To
• Local Ganache Chain
• Ganache UI
• Ganache Command Line
• Web3.py
• HTTP / RPC Provider
• Private Keys MUST start with "0x"
• Contract Object
• Building a Transaction
• Account Nonce
• Calling "Constructor"
• Transaction Parameters
• Signing the Transaction
• NEVER put your private key directly in your code
• Setting Environment Variables (Linux)
• Exported Environment Variables Only Last the Duration of the Shell/Terminal
• Private Key PSA
• .env file
• .gitignore
• Loading .env File in Python
• python-dotenv
• Viewing our Transaction / Deployment in Ganache
• Waiting for Block Confirmations

h2Interacting with Our Contract in Python & Web3.py

• 2 Things you always need
• Contract Address
• Contract ABI
• Getting address from transaction receipt
• Calling a view function with web3.py
• Call vs Transact
• Updating State with Web3.py
• ganache-cli
• Installing Ganache
• Install Nodejs
• Working with ganache-cli
• Deploying to a testnet
• Alchemy
• Using Infura RPC URL / HTTP Provider
• Chain Ids