Feature: add in new smart contract deployment feature using the Python-based Brownie framework.

README.md

@@ -1,6 +1,6 @@
 # Scroll Contract Deployment Demo
 
-This project demonstrates how to use hardhat or foundry to deploy a contract in Scroll's rollup network. This project contains a simple contract that will lock a certain amount of Ether in the deployed contract for a specified amount of time.
+This project demonstrates how to use hardhat, foundry or brownie to deploy a contract in Scroll's rollup network. This project contains a simple contract that will lock a certain amount of Ether in the deployed contract for a specified amount of time.
 
 
 ## Prerequisites
@@ -50,7 +50,89 @@ This project demonstrates how to use hardhat or foundry to deploy a contract in
     --legacy \
     contracts/Lock.sol:Lock
   ```
-
+
+## Deploy with Brownie
+
+### 1. Install pipx.
+
+```shell
+python3 -m pip install --user pipx
+python3 -m pipx ensurepath
+```
+
+### 2. Install Brownie.
+
+After you close and reopen the terminal, run the following command:
+
+```shell
+pipx install eth-brownie
+```
+
+or, alternatively, run:
+
+```shell
+pip install eth-brownie
+```
+
+### 3. Create a New Account.
+
+Create a new Brownie account and add your EVM wallet to it. It will prompt you to enter your EVM wallet's private key and a new password for that specific account.
+
+> **WARNING**
+>
+> NEVER SHARE YOUR PRIVATE KEY OR YOUR SECRET PHRASE WITH ANYONE.
+
+```shell
+# If you choose a different account name than [main-account], you will also need to change the global variable BROWNIE_ACCOUNT_NAME in <./scripts/deploy.py> to the new chosen name.
+brownie accounts new main-account
+```
+
+If you want to list all created accounts, run the following command:
+
+```shell
+brownie accounts list
+```
+
+### 4. Add the Scroll Network to Brownie.
+
+To add the Scroll Network to Brownie, run the following command: 
+
+- For testnet:
+
+```
+brownie networks add Ethereum "Scroll (Testnet)" id=scrollSepolia host=https://sepolia-rpc.scroll.io/ chainid=534351 explorer=https://sepolia.scrollscan.com/
+```
+
+- For mainnet:
+
+```
+brownie networks add Ethereum "Scroll (Mainnet)" id=scroll host=https://rpc.scroll.io/ chainid=534352 explorer=https://scrollscan.com/
+```
+
+### 5. Prepare the Workspace.
+
+Inside the project workspace root folder, compile the project by running the following command:
+
+```shell	
+brownie compile
+```
+
+### 6. Deploy the Contract.
+
+After installing Brownie and compiling the project, it is time to run the `deploy.py` Python script that deploys the `Lock.sol` Solidity contract to the blockchain.
+
+- For testnet:
+
+```shell	
+brownie run scripts/deploy.py --network scrollSepolia
+```
+
+- For mainnet:
+
+```shell	
+brownie run scripts/deploy.py --network scroll
+```
+
 ## Support
 
 Join our Discord: https://scroll.io/

scripts/deploy.py

@@ -0,0 +1,29 @@
+from brownie import accounts, Lock, Wei
+import time
+
+BROWNIE_ACCOUNT_NAME = 'main-account'
+ONE_YEAR_IN_SECS = 365 * 24 * 60 * 60
+TOTAL_LOCKED_AMOUNT_IN_ETHER = '0.00000001'
+
+def deploy():
+
+    account = accounts.load(BROWNIE_ACCOUNT_NAME)
+
+    currentTimestampInSeconds = round(time.time())
+    unlockTime = currentTimestampInSeconds + ONE_YEAR_IN_SECS
+    lockedAmount = Wei(f'{TOTAL_LOCKED_AMOUNT_IN_ETHER} ether')
+
+    lock = Lock.deploy(unlockTime, {"from": account, "value": lockedAmount})
+
+    print(f'Lock with {TOTAL_LOCKED_AMOUNT_IN_ETHER} ETH and unlock timestamp {unlockTime} deployed to {lock.address}')
+
+    # Pre-alpha block explorer.
+    # print(f'Block explorer URL: https://l2scan.scroll.io/address/{lock.address}')
+    # Testnet block explorer.
+    # print(f'Block explorer URL: https://sepolia.scrollscan.com/address/{lock.address}')
+    # Mainnet block explorer.
+    print(f'Block explorer URL: https://blockscout.scroll.io/address/{lock.address}')
+
+def main():
+
+    deploy()