def init_web3(providers=default):
from vns_web3 import Web3
if providers is default:
w3 = Web3(ens=None)
else:
w3 = Web3(providers, ens=None)
return customize_web3(w3)
def test_soliditySha3_ens(self, web3, types, values, expected):
with ens_addresses(web3, {
'one.eth': "0x49EdDD3769c0712032808D86597B84ac5c2F5614",
'two.eth': "0xA6b759bBbf4B59D24acf7E06e79f3a5D104fdCE5",
}):
# when called as class method, any name lookup attempt will fail
with pytest.raises(InvalidAddress):
Web3.soliditySha3(types, values)
# when called as instance method method, ens lookups can succeed
actual = web3.soliditySha3(types, values)
assert actual == expected
def name_to_hash(name):
node = EMPTY_SHA3_BYTES
if name:
labels = name.split(".")
for label in reversed(labels):
labelhash = label_to_hash(label)
assert isinstance(labelhash, bytes)
assert isinstance(node, bytes)
node = Web3().sha3(node + labelhash)
return node
def ensure_hex(data):
if not isinstance(data, str):
return Web3().toHex(data)
return data
def label_to_hash(label):
label = normalize_name(label)
if '.' in label:
raise ValueError("Cannot generate hash for label %r with a '.'" %
label)
return Web3().sha3(text=label)
def sha3_text(val):
if isinstance(val, str):
val = val.encode('utf-8')
return Web3().sha3(val)
from vns_web3 import (
IPCProvider,
Web3,
)
w3 = Web3(IPCProvider())
import json
import vns_web3
from vns_web3 import Web3, HTTPProvider
import rlp
from solc import compile_source
from web3.contract import ConciseContract
web3 = Web3(HTTPProvider('http://192.168.0.40:8585'))
def getCat(contract_address):
json_file = open('dss/output/Cat.abi', 'r')
json_abi = json.load(json_file)
json_file.close()
contract_address = web3.toChecksumAddress(contract_address)
cat = web3.vns.contract(address=contract_address, abi=json_abi)
return cat
def getDai(contract_address):
json_file = open('dss/output/Dai.abi', 'r')
json_abi = json.load(json_file)
json_file.close()
contract_address = web3.toChecksumAddress(contract_address)
dai = web3.vns.contract(address=contract_address, abi=json_abi)
return dai
def getDaiJoin(contract_address):
from vns_web3 import (
HTTPProvider,
Web3,
)
w3 = Web3(HTTPProvider())
from vns_web3 import Web3 w3 = Web3()
from vns_web3 import (
Web3,
WebsocketProvider,
)
w3 = Web3(WebsocketProvider())