.gitignore

.ve3
ve
account
password
dd
tx_hash

deploy.py

import json
import web3

from web3 import Web3, HTTPProvider, TestRPCProvider
from solc import compile_source
from web3.contract import ConciseContract

# Solidity source code
contract_source_code = '''
pragma solidity ^0.4.0;

contract Greeter {
    string public greeting;

    function Greeter() {
        greeting = 'Hello';
    }

    function setGreeting(string _greeting) public {
        greeting = _greeting;
    }

    function greet() constant returns (string) {
        return greeting;
    }
}
'''

compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:Greeter']

# web3.py instance
from sys import argv
w3 = Web3(HTTPProvider(argv[1]))

# Instantiate and deploy contract
contract = w3.eth.contract(contract_interface['abi'], bytecode=contract_interface['bin'])
# Get transaction hash from deployed contract
tx_hash = contract.deploy(transaction={'from': w3.eth.accounts[0], 'gas': 410000})
print(tx_hash)

'''
# Get tx receipt to get contract address
tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
print('tx_receipt', tx_receipt)
contract_address = tx_receipt['contractAddress']
print('contract_address', contract_address)
'''

Dockerfile

FROM ubuntu:16.04
RUN apt-get update -y && apt-get install -y apt-utils && apt-get upgrade -y
RUN apt-get install -y python3-pip python3-virtualenv virtualenv uuid-runtime python3-gevent python3-bottle software-properties-common
RUN add-apt-repository ppa:ethereum/ethereum
RUN apt-get update -y
RUN apt-get install -y emacs-nox tree solc libssl-dev geth screen git
RUN pip3 install -U py-solc populus pip
RUN git clone https://gist.github.com/val314159/c8807758cc98bfdfd18dfc060d030c11 /root/next-steps
WORKDIR /root/next-steps
RUN make .ve3

g.js

{
    "config": {
        "chainId": 130031,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    },
    "difficulty": "200",
    "gasLimit": "2100000",
    "alloc": {}
}

interact.py

import json
import web3

from web3 import Web3, HTTPProvider, TestRPCProvider
from solc import compile_source
from web3.contract import ConciseContract

# Solidity source code
contract_source_code = '''
pragma solidity ^0.4.0;

contract Greeter {
    string public greeting;

    function Greeter() {
        greeting = 'Hello';
    }

    function setGreeting(string _greeting) public {
        greeting = _greeting;
    }

    function greet() constant returns (string) {
        return greeting;
    }
}
'''

compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:Greeter']

# web3.py instance
from sys import argv
w3 = Web3(HTTPProvider(argv[1]))

tx_hash = argv[2]
print("tx_hash",tx_hash)

# Get tx receipt to get contract address
tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
print('tx_receipt', tx_receipt)
contract_address = tx_receipt['contractAddress']
print('contract_address', contract_address)

# Contract instance in concise mode
contract_instance = w3.eth.contract(contract_interface['abi'], contract_address, ContractFactoryClass=ConciseContract)
print('contract_instance', contract_instance)

# Getters + Setters for web3.eth.contract object
print('Contract value: {}'.format(contract_instance.greet()))
contract_instance.setGreeting('Nihao', transact={'from': w3.eth.accounts[0]})
print('Setting value to: Nihao')
print('Contract value: {}'.format(contract_instance.greet()))

Makefile

# To see this in action: look at http://b.ccl.io/2017/11/28/ethereum-next-steps

GETH=geth --datadir dd

all: run

docker-run: docker-build
	/usr/local/bin/docker run -it -w `pwd` -v `pwd`:`pwd` xx

docker-build:
	/usr/local/bin/docker build -t xx .

clean:
	rm -fr dd account password .ve3 *~ .*~ tx_hash

dd: account
	$(GETH) init g.js

attach:
	$(GETH) attach dd/geth.ipc

account:
	uuidgen > password
	$(GETH) account new --password password >account
	perl -i -npe 's/Address: {(.*?)}/$$1/g' account

run: dd
	$(GETH) --mine --nodiscover --maxpeers 0 --networkid 130031 --rpc --rpccorsdomain "*" --rpcport 8545 --unlock 0 --password password --rpcapi web3,eth,personal,net,db,shh

get-bal:
	curl http://localhost:8545 --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x'`cat account`'", "latest"],"id":1}'

.ve3:
	virtualenv -p python3 .ve3
	.ve3/bin/pip install web3 py-solc ipython populus

tx_hash: .ve3
	.ve3/bin/python deploy.py http://localhost:8545 | tee tx_hash

interact: .ve3 tx_hash
	.ve3/bin/python interact.py http://localhost:8545 `cat tx_hash`

unlock: .ve3
	.ve3/bin/python unlockAccount.py http://localhost:8545

unlockAccount.py

import json
import web3

from web3 import Web3, HTTPProvider, TestRPCProvider
from solc import compile_source
from web3.contract import ConciseContract

# Solidity source code
contract_source_code = '''
pragma solidity ^0.4.0;

contract Greeter {
    string public greeting;

    function Greeter() {
        greeting = 'Hello';
    }

    function setGreeting(string _greeting) public {
        greeting = _greeting;
    }

    function greet() constant returns (string) {
        return greeting;
    }
}
'''

compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:Greeter']

# web3.py instance
from sys import argv
w3 = Web3(HTTPProvider(argv[1]))

a = open('account').read().strip()
p = open('password').read().strip()

print(a)
print(p)
print(w3.eth.coinbase)
print(w3.eth.accounts)
print(w3.personal.unlockAccount('0x'+a,p))

#w3.personal.unlockAccount(a,p)
#w3.eth.personal.unlockAccount(
#w3.personal.Personal.unlockAccount(
#    open('account').read(),
#    open('password').read())
# Instantiate and deploy contract
#contract = w3.eth.contract(contract_interface['abi'], bytecode=contract_interface['bin'])
## Get transaction hash from deployed contract
#tx_hash = contract.deploy(transaction={'from': w3.eth.accounts[0], 'gas': 410000})
#print(tx_hash)

'''
# Get tx receipt to get contract address
tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
print('tx_receipt', tx_receipt)
contract_address = tx_receipt['contractAddress']
print('contract_address', contract_address)
'''