Learn BROWNIE with Real Code Examples

Deploy a simple ERC20 token to local Ganache network

Write unit tests for contract functions using pytest

Interact with deployed contract via Brownie console

Estimate gas costs for different transactions

Deploy NFT contract to Ethereum testnet using scripts

Check network configurations (Infura/Alchemy endpoints)

Ensure correct Solidity compiler version

Validate account private keys and balances

Debug failing tests using `brownie console`

Monitor gas estimation errors for transactions

Write unit tests for contract functions

Use fixtures to setup accounts and preconditions

Test edge cases and error handling

Monitor events emitted during transactions

Check gas usage and optimize for efficiency

Deploy to local Ganache blockchain

Deploy to Ethereum testnets via Infura/Alchemy

Deploy to Ethereum mainnet with funded account

Use scripts to automate multi-contract deployment

Integrate deployment into CI/CD pipelines

Ganache for local Ethereum blockchain

Infura/Alchemy for node access

Solidity compiler (solc)

pytest for automated testing

Web3.py for advanced contract interaction

Ethereum networks: Mainnet, Ropsten, Rinkeby, Goerli

DeFi protocols like Uniswap or Aave

NFT standards like ERC721/ERC1155

Python backends for automated interaction

Brownie console for manual contract management

Use Brownie console for quick contract tests

Write reusable deployment scripts

Leverage pytest fixtures for automated tests

Batch transactions where possible

Use Ganache for fast local testing before testnet deployment

Debugging failed transactions

Handling asynchronous blockchain events

Gas optimization for complex contracts

Testing edge cases in contract logic

Interacting with external DeFi protocols securely