- Breaking Change to Infura coming March 27th, 2019.
- After March 27th, you'll need an API key to interact with Infura. Sign up for one at https://infura.io/register.
Released April 24, 2019
- Bugfixes
- Cast gas price values to integers in gas strategies - #1304
- Misc
- Upgrade eth-tester version requirement - #1333
Released March 26, 2019
- Misc
- Add documentation about Infura Secret key environment variable - #1303
Released March 25, 2019
- Breaking Changes
- Raise error when connecting to Infura if there is no API key set - #1296
- Features
- Allow users to optionally use their Infura API secret key - #1298
- Misc
- Add deprecation warnings to JSON-RPC endpoints dropped in v5 - #1271
Released February 21, 2019
- Misc
- Interact with Infura using an API Key. Key will be required after March 27th. - #1250
Released November 15, 2018
- Misc
- Reduce unneeded memory usage - #1138
Released October 28, 2018
- Features
- Misc
Released September 25th, 2018
- Bugfixes
- IPC paths starting with
~
are appropriately resolved to the home directory - #1072 - You can use the local signing middleware with :class:`bytes`-type addresses - #1069
- IPC paths starting with
Released September 11th, 2018
- Bugfixes
- old pip bug used during release made it impossible for non-windows users to install 4.7.0.
Released September 10th, 2018
- Features
- Add traceFilter method to the parity module. - #1051
- Move :mod:`web3.utils.datastructures` to public namespace :mod:`web3.datastructures` to improve support for type checking. - #1038
- Optimization to contract calls - #944
- Bugfixes
- Misc - Upgrade eth-tester to 0.1.0-beta.32, and remove integration tests for py-ethereum. - Upgrade eth-hash to 0.2.0 with pycryptodome 3.6.6 which resolves a vulnerability.
Released Aug 24, 2018
Features
- Support for Python 3.7, most notably in :class:`~web3.providers.websocket.WebsocketProvider` - #996
- You can now decode a transaction's data to its original function call and arguments with: :meth:`contract.decode_function_input() <web3.contract.Contract.decode_function_input>` - #991
- Support for :class:`~web3.providers.ipc.IPCProvider` in FreeBSD (and more readme docs) - #1008
Bugfixes
- Fix crash in time-based gas strategies with small number of transactions - #983
- Fx crash when passing multiple addresses to :meth:`w3.eth.getLogs() <web3.eth.Eth.getLogs>` - #1005
Misc
Disallow configuring filters with both manual and generated topic lists - #976
Add support for the upcoming eth-abi v2, which does ABI string decoding differently - #974
Add a lot more filter tests - #997
Add more tests for filtering with
None
. Note that geth & parity differ here. - #985Follow-up on Parity bug that we reported upstream (parity#7816): they resolved in 1.10. We removed xfail on that test. - #992
Docs: add an example of interacting with an ERC20 contract - #995
A couple doc typo fixes
Released July 30, 2018
- Features
- Accept addresses supplied in :class:`bytes` format (which does not provide checksum validation)
- Improve estimation of gas prices
- Bugfixes
- Can now use a block number with :meth:`~web3.eth.Eth.getCode` when connected to :class:`~web3.providers.eth_tester.EthereumTesterProvider` (without crashing)
- Misc
- Test Parity 1.11.7
- Parity integration tests upgrade to use sha256 instead of md5
- Fix some filter docs
- eth-account upgrade to v0.3.0
- eth-tester upgrade to v0.1.0-beta.29
Released June 29, 2018
- Bugfixes
- eth-pm package was renamed (old one deleted) which broke the web3 release. eth-pm was removed from the web3.py install until it's stable.
- Misc
- :class:`~web3.providers.ipc.IPCProvider` now accepts a :class:`pathlib.Path` argument for the IPC path
- Docs explaining the :ref:`new custom autoproviders in web3 <custom_auto_providers>`
Released June 21, 2018
- Features
- Add support for https in WEB3_PROVIDER_URI environment variable
- Can send websocket connection parameters in :class:`~web3.providers.websocket.WebsocketProvider`
- Two new auto-initialization options:
from web3.auto.gethdev import w3
from web3.auto.infura import w3
(After setting theINFURA_API_KEY
environment variable)
- Alpha support for a new package management tool based on ethpm-spec, see :doc:`web3.pm`
- Bugfixes
- Can now receive large responses in :class:`~web3.providers.websocket.WebsocketProvider` by
specifying a large
max_size
in the websocket connection parameters.
- Can now receive large responses in :class:`~web3.providers.websocket.WebsocketProvider` by
specifying a large
- Misc
- Websockets dependency upgraded to v5
- Raise deprecation warning on :meth:`~web3.eth.Eth.getTransactionFromBlock`
- Fix docs for :meth:`~web3.eth.Eth.waitForTransactionReceipt`
- Developer Dockerfile now installs testing dependencies
Released June 6, 2018
- Features
- Support for the ABI types like: fixedMxN which is used by Vyper.
- In-flight transaction-signing middleware: Use local keys as if they were hosted keys
using the new
sign_and_send_raw_middleware
- New :meth:`~web3.eth.Eth.getUncleByBlock` API
- New name :meth:`~web3.eth.Eth.getTransactionByBlock`, which replaces the deprecated :meth:`~web3.eth.Eth.getTransactionFromBlock`
- Add several new Parity trace functions
- New API to resolve ambiguous function calls, for example:
- Two functions with the same name that accept similar argument types, like
myfunc(uint8)
andmyfunc(int8)
, and you want to callcontract.functions.myfunc(1).call()
- See how to use it at: :ref:`ambiguous-contract-functions`
- Two functions with the same name that accept similar argument types, like
- Bugfixes
- Gas estimation doesn't crash, when 0 blocks are available. (ie~ on the genesis block)
- Close out all HTTPProvider sessions, to squash warnings on exit
- Stop adding Contract address twice to the filter. It was making some nodes unhappy
- Misc
- Friendlier json encoding/decoding failure error messages
- Performance improvements, when the responses from the node are large (by reducing the number of times we evaluate if the response is valid json)
- Parity CI test fixes (ugh, environment setup hell, thanks to the community for cleaning this up!)
- Don't crash when requesting a transaction that was created with the parity bug
(which allowed an unsigned transaction to be included, so
publicKey
isNone
) - Doc fixes: addresses must be checksummed (or ENS names on mainnet)
- Enable local integration testing of parity on non-Debian OS
- README:
- Testing setup for devs
- Change the build badge from Travis to Circle CI
- Cache the parity binary in Circle CI, to reduce the impact of their binary API going down
- Dropped the dot:
py.test
->pytest
Released May 9, 2018
- Bugfixes
- When :meth:`getting a transaction <web3.eth.Eth.getTransaction>` with data attached and trying to :meth:`modify it <web3.eth.Eth.modifyTransaction>` (say, to increase the gas price), the data was not being reattached in the new transaction.
- :meth:`web3.personal.sendTransaction` was crashing when using a transaction
generated with
buildTransaction()
- Misc
- Improved error message when connecting to a geth-style PoA network
- Improved error message when address is not checksummed
- Started in on support for
fixedMxN
ABI arguments - Lots of documentation upgrades, including:
- Guide for understanding nodes/networks/connections
- Simplified Quickstart with notes for common issues
- A new Troubleshooting section
- Potential pypy performance improvements (use toolz instead of cytoolz)
- eth-tester upgraded to beta 24
Released Apr 25, 2018
- Removed audit warning and opt-in requirement for
w3.eth.account
. See more in: :ref:`eth-account` - Added an API to look up contract functions:
fn = contract.functions['function_name_here']
- Upgrade Whisper (shh) module to use v6 API
- Bugfix: set 'to' field of transaction to empty when using
transaction = contract.constructor().buildTransaction()
- You can now specify nonce in
buildTransaction()
- Distinguish between chain id and network id -- currently always return None for :attr:`~web3.net.Net.chainId`
- Better error message when trying to use a contract function that has 0 or >1 matches
- Better error message when trying to install on a python version <3.5
- Installs pypiwin32 during pip install, for a better Windows experience
- Cleaned up a lot of test warnings by upgrading from deprecated APIs, especially
from the deprecated
contract.deploy(txn_dict, args=contract_args)
to the newcontract.constructor(*contract_args).transact(txn_dict)
- Documentation typo fixes
- Better template for Pull Requests
Released Apr 9, 2018
- New :class:`~web3.providers.websocket.WebsocketProvider`. If you're looking for better performance than HTTP, check out websockets.
- New :meth:`w3.eth.waitForTransactionReceipt() <web3.eth.Eth.waitForTransactionReceipt>`
- Added name collision detection to ConciseContract and ImplicitContract
- Bugfix to allow fromBlock set to 0 in createFilter, like
contract.events.MyEvent.createFilter(fromBlock=0, ...)
- Bugfix of ENS automatic connection
- eth-tester support for Byzantium
- New migration guide for v3 -> v4 upgrade
- Various documentation updates
- Pinned eth-account to older version
Released Apr 2, 2018
- Marked beta.13 as stable
- Documentation tweaks
Released Mar 27, 2018
This is intended to be the final release before the stable v4 release.
- Add support for geth 1.8 (fixed error on :meth:`~web3.eth.Eth.getTransactionReceipt`)
- You can now call a contract method at a specific block
with the
block_identifier
keyword argument, see: :meth:`~web3.contract.ContractFunction.call` - In preparation for stable release, disable
w3.eth.account
by default, until a third-party audit is complete & resolved. - New API for contract deployment, which enables gas estimation, local signing, etc. See :meth:`~web3.contract.Contract.constructor`.
- Find contract events with :ref:`contract.events.$my_event.createFilter() <contract_createFilter>`
- Support auto-complete for contract methods.
- Upgrade most dependencies to stable
- eth-abi
- eth-utils
- hexbytes
- not included: eth-tester and eth-account
- Switch the default EthereumTesterProvider backend from eth-testrpc to eth-tester: :class:`web3.providers.eth_tester.EthereumTesterProvider`
- A lot of documentation improvements
- Test node integrations over a variety of providers
- geth 1.8 test suite
A little hiccup on release. Skipped.
Released Feb 28, 2018
- New methods to modify or replace pending transactions
- A compatibility option for connecting to
geth --dev
-- see :ref:`geth-poa` - A new :attr:`web3.net.chainId`
- Create a filter object from an existing filter ID.
- eth-utils v1.0.1 (stable) compatibility
Released Feb 21, 2018
- bugfix: Compatibility with eth-utils v1-beta2 (the incompatibility was causing fresh web3.py installs to fail)
- bugfix: crash when sending the output of
contract.functions.myFunction().buildTransaction()
to :meth:`~web3.eth.Eth.sendTransaction`. Now, having a chainID key does not crash sendTransaction. - bugfix: a TypeError when estimating gas like:
contract.functions.myFunction().estimateGas()
is fixed - Added parity integration tests to the continuous integration suite!
- Some py3 and docs cleanup
Released Feb 8, 2018
- Access event log parameters as attributes
- Support for specifying nonce in eth-tester
- Bugfix dependency conflicts between eth-utils, eth-abi, and eth-tester
- Clearer error message when invalid keywords provided to contract constructor function
- New docs for working with private keys + set up doctests
- First parity integration tests
- replace internal implementation of w3.eth.account with :class:`eth_account.account.Account`
Released Feb 7, 2018, then recalled. It added 32MB of test data to git history, so the tag was deleted, as well as the corresponding release. (Although the release would not have contained that test data)
Released Jan 29, 2018
- Support for :meth:`web3.eth.Eth.getLogs` in eth-tester with py-evm
- Process transaction receipts with Event ABI, using Contract.events.myEvent(*args, **kwargs).processReceipt(transaction_receipt) see :ref:`event-log-object` for the new type.
- Add timeout parameter to :class:`web3.providers.ipc.IPCProvider`
- bugfix: make sure idna package is always installed
- Replace ethtestrpc with py-evm, in all tests
- Dockerfile fixup
- Test refactoring & cleanup
- Reduced warnings during tests
Released Jan 18, 2018
- New contract function call API: my_contract.functions.my_func().call() is preferred over the now deprecated my_contract.call().my_func() API.
- A new, sophisticated gas estimation algorithm, based on the https://ethgasstation.info approach. You must opt-in to the new approach, because it's quite slow. We recommend using the new caching middleware. See :meth:`web3.gas_strategies.time_based.construct_time_based_gas_price_strategy`
- New caching middleware that can cache based on time, block, or indefinitely.
- Automatically retry JSON-RPC requests over HTTP, a few times.
- ConciseContract now has the address directly
- Many eth-tester fixes. :class:`web3.providers.eth_tester.main.EthereumTesterProvider` is now a legitimate alternative to :class:`web3.providers.tester.EthereumTesterProvider`.
- ethtest-rpc removed from testing. Tests use eth-tester only, on pyethereum. Soon it will be eth-tester with py-evm.
- Bumped several dependencies, like eth-tester
- Documentation updates
Released Dec 28, 2017
- Improvements to working with eth-tester, using :class:`~web3.providers.eth_tester.EthereumTesterProvider`:
- Bugfix the key names in event logging
- Add support for :meth:`~web3.eth.Eth.sendRawTransaction`
- :class:`~web3.providers.ipc.IPCProvider` now automatically retries on a broken connection, like when you restart your node
- New gas price engine API, laying groundwork for more advanced gas pricing strategies
Released Dec 7, 2017
- New :meth:`~web3.contract.Contract.buildTransaction` method to prepare contract transactions, offline
- New automatic provider detection, for
w3 = Web3()
initialization - Set environment variable WEB3_PROVIDER_URI to suggest a provider for automatic detection
- New API to set providers like:
w3.providers = [IPCProvider()]
- Crashfix: :meth:`web3.eth.Eth.filter` when retrieving logs with the argument 'latest'
- Bump eth-tester to v0.1.0-beta.5, with bugfix for filtering by topic
- Removed GPL lib
pylru
, now believed to be in full MIT license compliance.
Released Dec 1, 2017
- Fix encoding of ABI types:
bytes[]
andstring[]
- Windows connection error bugfix
- Bugfix message signatures that were broken ~1% of the time (zero-pad
r
ands
) - Autoinit web3 now produces None instead of raising an exception on
from web3.auto import w3
- Clearer errors on formatting failure (includes field name that failed)
- Python modernization, removing Py2 compatibility cruft
- Update dependencies with changed names, now:
eth-abi
eth-keyfile
eth-keys
eth-tester
eth-utils
- Faster Travis CI builds, with cached geth binary
Released Nov 22, 2017
Bug Fixes:
- :meth:`~web3.eth.Eth.sendRawTransaction` accepts raw bytes
- :meth:`~web3.eth.Eth.contract` accepts an ENS name as contract address
- :meth:`~web3.account.Account.signTransaction` returns the expected hash (after signing the transaction)
- :class:`~web3.account.Account` methods can all be called statically, like:
Account.sign(...)
- :meth:`~web3.eth.Eth.getTransactionReceipt` returns the
status
field as anint
- :meth:`Web3.soliditySha3` looks up ENS names if they are supplied with an "address" ABI
- If running multiple threads with the same w3 instance,
ValueError: Recursively called ...
is no longer raised
Plus, various python modernization code cleanups, and testing against geth 1.7.2.
- Python 3 is now required
- ENS names can be used anywhere that a hex address can
- Sign transactions and messages with local private keys
- New filter mechanism: :meth:`~web3.utils.filters.Filter.get_all_entries` and :meth:`~web3.utils.filters.Filter.get_new_entries`
- Quick automatic initialization with
from web3.auto import w3
- All addresses must be supplied with an EIP-55 checksum
- All addresses are returned with a checksum
- Renamed
Web3.toDecimal()
totoInt()
, see: :ref:`overview_type_conversions` - All filter calls are synchronous, gevent integration dropped
- Contract :meth:`~web3.contract.Contract.eventFilter` has replaced both
Contract.on()
andContract.pastEvents()
- Contract arguments of
bytes
ABI type now accept hex strings. - Contract arguments of
string
ABI type now accept pythonstr
. - Contract return values of
string
ABI type now return pythonstr
. - Many methods now return a
bytes
-like object where they used to return a hex string, like in :meth:`Web3.sha3()` - IPC connection left open and reused, rather than opened and closed on each call
- A number of deprecated methods from v3 were removed
- Addition of
ethereum-tester
as a dependency
- Addition of named middlewares for easier manipulation of middleware stack.
- Provider middlewares can no longer be modified during runtime.
- Experimental custom ABI normalization API for Contract objects.
- Change docs to use RTD theme
- Experimental new
EthereumTesterProvider
for theethereum-tester
library. - Bugfix for
function
type abi encoding viaethereum-abi-utils
upgrade tov0.4.1
- Bugfix for
Web3.toHex
to conform to RPC spec.
- Fix PyPi readme text.
- Fix PyPi readme text.
- New
stalecheck_middleware
- Improvements to
Web3.toHex
andWeb3.toText
. - Improvements to
Web3.sha3
signature. - Bugfixes for
Web3.eth.sign
api
- Add experimental
fixture_middleware
- Various bugfixes introduced in middleware API introduction and migration to formatter middleware.
- Bugfix for formatter handling of contract creation transaction.
- Improved testing infrastructure.
- Bugfix for retrieving filter changes for both new block filters and pending transaction filters.
- Fix mispelled
attrdict_middleware
(was spelledattrdict_middlware
).
- New Middleware API
- Support for multiple providers
- New
web3.soliditySha3
- Remove multiple functions that were never implemented from the original web3.
- Deprecated
web3.currentProvider
accessor. Useweb3.provider
now instead. - Deprecated password prompt within
web3.personal.newAccount
.
- Bugfix for abi filtering to correctly handle
constructor
andfallback
type abi entries.
- All web3 apis which accept
address
parameters now enforce checksums if the address looks like it is checksummed. - Improvements to error messaging with when calling a contract on a node that may not be fully synced
- Bugfix for
web3.eth.syncing
to correctly handleFalse
- Web3 now returns
web3.utils.datastructures.AttributeDict
in places where it previously returned a normaldict
. web3.eth.contract
now performs validation on theaddress
parameter.- Added
web3.eth.getWork
API
- Add validation for the
abi
parameter ofeth
- Contract return values of
bytes
,bytesXX
andstring
are no longer converted to text types and will be returned in their raw byte-string format.
- Bugfix for
platon_sign
double hashing input. - Removed deprecated
DelegatedSigningManager
- Removed deprecate
PrivateKeySigningManager
- Update pyrlp dependency to
>=0.4.7
- Update eth-testrpc dependency to
>=1.2.0
- Deprecate
DelegatedSigningManager
- Deprecate
PrivateKeySigningManager
- upstream version bump for bugfix in eth-abi-utils
- deprecate
eth.defaultAccount
defaulting to the coinbase account.
- Fix error message from contract factory creation.
- Use
ethereum-utils
for utility functions.
- Upgrade
ethereum-abi-utils
dependency for upstream bugfix.
- Deprecate
Contract.code
: replaced byContract.bytecode
- Deprecate
Contract.code_runtime
: replaced byContract.bytecode_runtime
- Deprecate
abi
,code
,code_runtime
andsource
as arguments for theContract
object. - Deprecate
source
as a property of theContract
object - Add
Contract.factory()
API. - Deprecate the
construct_contract_factory
helper function.
- Bugfix for how
requests
library is used. Now reuses session.
- Bugfix for construction of
request_kwargs
within HTTPProvider
- Allow
HTTPProvider
to be imported fromweb3
module. - make
HTTPProvider
accessible as a property ofweb3
instances.
- Deprecate
web3.providers.rpc.RPCProvider
- Deprecate
web3.providers.rpc.KeepAliveRPCProvider
- Add new
web3.providers.rpc.HTTPProvider
- Remove hard dependency on gevent.
- Bugfix for
web3.eth.getTransaction
when the hash is unknown.
- Bugfix for event log data decoding to properly handle dynamic sized values.
- New
web3.tester
module to access extra RPC functionality frometh-testrpc
- Fix package so that
eth-testrpc
is not required.
- Force gevent<1.2.0 until this issue is fixed: gevent/gevent#916
- Bugfix for contract instances to respect
web3.eth.defaultAccount
- Better error reporting when ABI decoding fails for contract method response.
- New
EthereumTesterProvider
now available. Faster test runs thanTestRPCProvider
- Updated underlying eth-testrpc requirement.
web3.shh
is now implemented.- Introduced
KeepAliveRPCProvider
to correctly recycle HTTP connections and use HTTP keep alive
- Bugfix for contract transaction sending not respecting the
web3.eth.defaultAccount
configuration.
- New DelegatedSigningManager and PrivateKeySigningManager classes.
- Bugfix or IPCProvider not handling large JSON responses well.
- Better RPC compliance to be compatable with the Parity JSON-RPC server.
Filter
objects now support controlling the interval through which they poll using thepoll_interval
property
- Bugfix generation of event topics.
- Web3.Iban now allows access to Iban address tools.
- Bugfix for
geth.ipc
path on linux systems.
- Changes to the
Contract
API: Contract.deploy()
parameter arguments renamed to argsContract.deploy()
now takes args and kwargs parameters to allow constructing with keyword arguments or positional arguments.Contract.pastEvents
now allows you to specify afromBlock or ``toBlock.
Previously these were forced to be'earliest'
andweb3.eth.blockNumber
respectively.Contract.call
,Contract.transact
andContract.estimateGas
are now callable as class methods as well as instance methods. When called this way, an address must be provided with the transaction parameter.Contract.call
,Contract.transact
andContract.estimateGas
now allow specifying an alternate address for the transaction.
- Changes to the
RPCProvider
now supports the following constructor arguments.ssl
for enabling SSLconnection_timeout
andnetwork_timeout
for controlling the timeouts for requests.
- Bugfix: Fix KeyError in merge_args_and_kwargs helper fn.
- Bugfix for usage of block identifiers 'latest', 'earliest', 'pending'
- Sphinx documentation
- Non-data transactions now default to 90000 gas.
- Web3 object now has helpers set as static methods rather than being set at initialization.
- RPCProvider now takes a
path
parameter to allow configuration for requests to go to paths other than/
.
- TestRPCProvider no longer dumps logging output to stdout and stderr.
- Bugfix for return types of
address[]
- Bugfix for event data types of
address
- All transactions which contain a
data
element will now have their gas automatically estimated with 100k additional buffer. This was previously only true with transactions initiated from aContract
object.
- Contract functions can now be called using keyword arguments.
- Upstream fixes for filters
- Filter APIs
on
andpastEvents
now callable as both instance and class methods.
- The filters that come back from the contract
on
andpastEvents
methods now call their callbacks with the same data format asweb3.js
.
- Cast RPCProvider port to an integer.
- Remove all monkeypatching
- Pull in downstream updates to proper gevent usage.
- Fix
platon_sign
- Bugfix with contract operations mutating the transaction object that is passed in.
- More explicit linting ignore statements.
- BugFix: fix for python3 only
json.JSONDecodeError
handling.
- BugFix:
RPCProvider
not sending a content-type header - Bugfix:
web3.toWei
now returns an integer instead of a decimal.Decimal
TestRPCProvider
can now be imported directly fromweb3
- Add
eth.admin
interface. - Bugfix: Format the return value of
web3.eth.syncing
- Bugfix: IPCProvider socket interactions are now more robust.
- Downstream package upgrades for
eth-testrpc
andethereum-tester-client
to handle configuration of the Homestead and DAO fork block numbers.
- Rename
web3.contract._Contract
toweb3.contract.Contract
to expose it for static analysis and auto completion tools - Allow passing string parameters to functions
- Automatically compute gas requirements for contract deployment and
- transactions.
- Contract Filters
- Block, Transaction, and Log filters
web3.eth.txpool
interfaceweb3.eth.mining
interface- Fixes for encoding.
- Bugfix to allow address types in constructor arguments.
- Partial implementation of the
web3.eth.contract
interface.
- Restructure project modules to be more flat
- Add ability to run test suite without the slow tests.
- Breakup
encoding
utils into smaller modules. - Basic pep8 formatting.
- Apply python naming conventions to internal APIs
- Lots of minor bugfixes.
- Removal of dead code left behing from
1.0.0
refactor. - Removal of
web3/solidity
module.
- Add missing
isConnected()
method. - Add test coverage for
setProvider()
- Specify missing
pyrlp
andgevent
dependencies
- Massive refactor to the majority of the app.
- Initial release