Deploy @dexon-foundation/0x.jsstable

11 files changed, 0 insertions, 958 deletions

diff --git a/python-packages/order_utils/src/conf.py b/python-packages/order_utils/src/conf.py
deleted file mode 100644
index d8f56b29e..000000000
--- a/python-packages/order_utils/src/conf.py
+++ /dev/null
@@ -1,55 +0,0 @@
-"""Configuration file for the Sphinx documentation builder."""
-
-# Reference: http://www.sphinx-doc.org/en/master/config
-
-from typing import List
-import pkg_resources
-
-
-# pylint: disable=invalid-name
-# because these variables are not named in upper case, as globals should be.
-
-project = "0x-order-utils"
-# pylint: disable=redefined-builtin
-copyright = "2018, ZeroEx, Intl."
-author = "F. Eugene Aumson"
-version = pkg_resources.get_distribution("0x-order-utils").version
-release = ""  # The full version, including alpha/beta/rc tags
-
-extensions = [
-    "sphinx.ext.autodoc",
-    "sphinx.ext.doctest",
-    "sphinx.ext.intersphinx",
-    "sphinx.ext.coverage",
-    "sphinx.ext.viewcode",
-    "sphinx_autodoc_typehints",
-]
-
-templates_path = ["doc_templates"]
-
-source_suffix = ".rst"
-# eg: source_suffix = [".rst", ".md"]
-
-master_doc = "index"  # The master toctree document.
-
-language = None
-
-exclude_patterns: List[str] = []
-
-# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = None
-
-html_theme = "alabaster"
-
-html_static_path = ["doc_static"]
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-
-# Output file base name for HTML help builder.
-htmlhelp_basename = "order_utilspydoc"
-
-# -- Extension configuration:
-
-# Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {"https://docs.python.org/": None}
diff --git a/python-packages/order_utils/src/doc_static/.gitkeep b/python-packages/order_utils/src/doc_static/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
--- a/python-packages/order_utils/src/doc_static/.gitkeep
+++ /dev/null
diff --git a/python-packages/order_utils/src/doc_templates/.gitkeep b/python-packages/order_utils/src/doc_templates/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
--- a/python-packages/order_utils/src/doc_templates/.gitkeep
+++ /dev/null
diff --git a/python-packages/order_utils/src/index.rst b/python-packages/order_utils/src/index.rst
deleted file mode 100644
index ce618c6ff..000000000
--- a/python-packages/order_utils/src/index.rst
+++ /dev/null
@@ -1,36 +0,0 @@
-.. source for the sphinx-generated build/docs/web/index.html
-
-Python zero_ex.order_utils
-==========================
-
-.. toctree::
-   :maxdepth: 2
-   :caption: Contents:
-
-.. automodule:: zero_ex.order_utils
-   :members:
-
-.. autoclass:: zero_ex.order_utils.Order
-
-   See source for class properties.  Sphinx is having problems generating docs for ``TypedDict`` declarations; pull requests welcome.
-
-zero_ex.order_utils.asset_data_utils
-------------------------------------
-
-.. automodule:: zero_ex.order_utils.asset_data_utils
-   :members:
-
-.. autoclass:: zero_ex.order_utils.asset_data_utils.ERC20AssetData
-
-   See source for class properties.  Sphinx is having problems generating docs for ``TypedDict`` declarations; pull requests welcome.
-
-.. autoclass:: zero_ex.order_utils.asset_data_utils.ERC721AssetData
-
-   See source for class properties.  Sphinx is having problems generating docs for ``TypedDict`` declarations; pull requests welcome.
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
diff --git a/python-packages/order_utils/src/zero_ex/__init__.py b/python-packages/order_utils/src/zero_ex/__init__.py
deleted file mode 100644
index e90d833db..000000000
--- a/python-packages/order_utils/src/zero_ex/__init__.py
+++ /dev/null
@@ -1,2 +0,0 @@
-"""0x Python API."""
-__import__("pkg_resources").declare_namespace(__name__)
diff --git a/python-packages/order_utils/src/zero_ex/dev_utils/__init__.py b/python-packages/order_utils/src/zero_ex/dev_utils/__init__.py
deleted file mode 100644
index b6a224d2c..000000000
--- a/python-packages/order_utils/src/zero_ex/dev_utils/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-"""Dev utils to be shared across 0x projects and packages."""
diff --git a/python-packages/order_utils/src/zero_ex/dev_utils/abi_utils.py b/python-packages/order_utils/src/zero_ex/dev_utils/abi_utils.py
deleted file mode 100644
index 3fec775b0..000000000
--- a/python-packages/order_utils/src/zero_ex/dev_utils/abi_utils.py
+++ /dev/null
@@ -1,101 +0,0 @@
-"""Ethereum ABI utilities.
-
-Builds on the eth-abi package, adding some convenience methods like those found
-in npmjs.com/package/ethereumjs-abi.  Ideally, all of this code should be
-pushed upstream into eth-abi.
-"""
-
-import re
-from typing import Any, List
-
-from mypy_extensions import TypedDict
-
-from web3 import Web3
-from eth_abi import encode_abi
-
-from .type_assertions import assert_is_string, assert_is_list
-
-
-class MethodSignature(TypedDict, total=False):
-    """Object interface to an ABI method signature."""
-
-    method: str
-    args: List[str]
-
-
-def parse_signature(signature: str) -> MethodSignature:
-    """Parse a method signature into its constituent parts.
-
-    >>> parse_signature("ERC20Token(address)")
-    {'method': 'ERC20Token', 'args': ['address']}
-    """
-    assert_is_string(signature, "signature")
-
-    matches = re.match(r"^(\w+)\((.+)\)$", signature)
-    if matches is None:
-        raise ValueError(f"Invalid method signature {signature}")
-    return {"method": matches[1], "args": matches[2].split(",")}
-
-
-def elementary_name(name: str) -> str:
-    """Convert from short to canonical names; barely implemented.
-
-    Modeled after ethereumjs-abi's ABI.elementaryName(), but only implemented
-    to support our particular use case and a few other simple ones.
-
-    >>> elementary_name("address")
-    'address'
-    >>> elementary_name("uint")
-    'uint256'
-    """
-    assert_is_string(name, "name")
-
-    return {
-        "int": "int256",
-        "uint": "uint256",
-        "fixed": "fixed128x128",
-        "ufixed": "ufixed128x128",
-    }.get(name, name)
-
-
-def event_id(name: str, types: List[str]) -> str:
-    """Return the Keccak-256 hash of the given method.
-
-    >>> event_id("ERC20Token", ["address"])
-    '0xf47261b06eedbfce68afd46d0f3c27c60b03faad319eaf33103611cf8f6456ad'
-    """
-    assert_is_string(name, "name")
-    assert_is_list(types, "types")
-
-    signature = f"{name}({','.join(list(map(elementary_name, types)))})"
-    return Web3.sha3(text=signature).hex()
-
-
-def method_id(name: str, types: List[str]) -> str:
-    """Return the 4-byte method identifier.
-
-    >>> method_id("ERC20Token", ["address"])
-    '0xf47261b0'
-    """
-    assert_is_string(name, "name")
-    assert_is_list(types, "types")
-
-    return event_id(name, types)[0:10]
-
-
-def simple_encode(method: str, *args: Any) -> bytes:
-    r"""Encode a method ABI.
-
-    >>> simple_encode("ERC20Token(address)", "0x1dc4c1cefef38a777b15aa20260a54e584b16c48")
-    b'\xf4ra\xb0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\xc4\xc1\xce\xfe\xf3\x8aw{\x15\xaa &\nT\xe5\x84\xb1lH'
-    """  # noqa: E501 (line too long)
-    assert_is_string(method, "method")
-
-    signature: MethodSignature = parse_signature(method)
-
-    return bytes.fromhex(
-        (
-            method_id(signature["method"], signature["args"])
-            + encode_abi(signature["args"], args).hex()
-        )[2:]
-    )
diff --git a/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py b/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py
deleted file mode 100644
index 4681315a8..000000000
--- a/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py
+++ /dev/null
@@ -1,87 +0,0 @@
-"""Assertions for runtime type checking of function arguments."""
-
-from typing import Any
-
-from eth_utils import is_address
-from web3.providers.base import BaseProvider
-
-
-def assert_is_string(value: Any, name: str) -> None:
-    """If :param value: isn't of type str, raise a TypeError.
-
-    >>> try: assert_is_string(123, 'var')
-    ... except TypeError as type_error: print(str(type_error))
-    ...
-    expected variable 'var', with value 123, to have type 'str', not 'int'
-    """
-    if not isinstance(value, str):
-        raise TypeError(
-            f"expected variable '{name}', with value {str(value)}, to have"
-            + f" type 'str', not '{type(value).__name__}'"
-        )
-
-
-def assert_is_list(value: Any, name: str) -> None:
-    """If :param value: isn't of type list, raise a TypeError.
-
-    >>> try: assert_is_list(123, 'var')
-    ... except TypeError as type_error: print(str(type_error))
-    ...
-    expected variable 'var', with value 123, to have type 'list', not 'int'
-    """
-    if not isinstance(value, list):
-        raise TypeError(
-            f"expected variable '{name}', with value {str(value)}, to have"
-            + f" type 'list', not '{type(value).__name__}'"
-        )
-
-
-def assert_is_int(value: Any, name: str) -> None:
-    """If :param value: isn't of type int, raise a TypeError.
-
-    >>> try: assert_is_int('asdf', 'var')
-    ... except TypeError as type_error: print(str(type_error))
-    ...
-    expected variable 'var', with value asdf, to have type 'int', not 'str'
-    """
-    if not isinstance(value, int):
-        raise TypeError(
-            f"expected variable '{name}', with value {str(value)}, to have"
-            + f" type 'int', not '{type(value).__name__}'"
-        )
-
-
-def assert_is_hex_string(value: Any, name: str) -> None:
-    """Assert that :param value: is a string of hex chars.
-
-    If :param value: isn't a str, raise a TypeError.  If it is a string but
-    contains non-hex characters ("0x" prefix permitted), raise a ValueError.
-    """
-    assert_is_string(value, name)
-    int(value, 16)  # raises a ValueError if value isn't a base-16 str
-
-
-def assert_is_address(value: Any, name: str) -> None:
-    """Assert that `value` is a valid Ethereum address.
-
-    If `value` isn't a hex string, raise a TypeError.  If it isn't a valid
-    Ethereum address, raise a ValueError.
-    """
-    assert_is_hex_string(value, name)
-    if not is_address(value):
-        raise ValueError(
-            f"Expected variable '{name}' to be a valid Ethereum"
-            + " address, but it's not."
-        )
-
-
-def assert_is_provider(value: Any, name: str) -> None:
-    """Assert that `value` is a Web3 provider.
-
-    If `value` isn't a Web3 provider, raise a TypeError.
-    """
-    if not isinstance(value, BaseProvider):
-        raise TypeError(
-            f"Expected variable '{name}' to be an instance of a Web3 provider,"
-            + " but it's not."
-        )
diff --git a/python-packages/order_utils/src/zero_ex/order_utils/__init__.py b/python-packages/order_utils/src/zero_ex/order_utils/__init__.py
deleted file mode 100644
index 39d411507..000000000
--- a/python-packages/order_utils/src/zero_ex/order_utils/__init__.py
+++ /dev/null
@@ -1,535 +0,0 @@
-"""Order utilities for 0x applications.
-
-Some methods require the caller to pass in a `Web3.BaseProvider`:code: object.
-For local testing one may construct such a provider pointing at an instance of
-`ganache-cli <https://www.npmjs.com/package/ganache-cli>`_ which has the 0x
-contracts deployed on it.  For convenience, a docker container is provided for
-just this purpose.  To start it:
-`docker run -d -p 8545:8545 0xorg/ganache-cli:2.2.2`:code:.
-"""
-
-from copy import copy
-from enum import auto, Enum
-import json
-from typing import cast, Dict, NamedTuple, Tuple
-from pkg_resources import resource_string
-
-from mypy_extensions import TypedDict
-
-from eth_utils import keccak, remove_0x_prefix, to_bytes, to_checksum_address
-from web3 import Web3
-import web3.exceptions
-from web3.providers.base import BaseProvider
-from web3.utils import datatypes
-
-from zero_ex.contract_addresses import NETWORK_TO_ADDRESSES, NetworkId
-import zero_ex.contract_artifacts
-from zero_ex.dev_utils.type_assertions import (
-    assert_is_address,
-    assert_is_hex_string,
-    assert_is_provider,
-)
-from zero_ex.json_schemas import assert_valid
-
-
-class _Constants:
-    """Static data used by order utilities."""
-
-    null_address = "0x0000000000000000000000000000000000000000"
-
-    eip191_header = b"\x19\x01"
-
-    eip712_domain_separator_schema_hash = keccak(
-        b"EIP712Domain(string name,string version,address verifyingContract)"
-    )
-
-    eip712_domain_struct_header = (
-        eip712_domain_separator_schema_hash
-        + keccak(b"0x Protocol")
-        + keccak(b"2")
-    )
-
-    eip712_order_schema_hash = keccak(
-        b"Order("
-        + b"address makerAddress,"
-        + b"address takerAddress,"
-        + b"address feeRecipientAddress,"
-        + b"address senderAddress,"
-        + b"uint256 makerAssetAmount,"
-        + b"uint256 takerAssetAmount,"
-        + b"uint256 makerFee,"
-        + b"uint256 takerFee,"
-        + b"uint256 expirationTimeSeconds,"
-        + b"uint256 salt,"
-        + b"bytes makerAssetData,"
-        + b"bytes takerAssetData"
-        + b")"
-    )
-
-    class SignatureType(Enum):
-        """Enumeration of known signature types."""
-
-        ILLEGAL = 0
-        INVALID = auto()
-        EIP712 = auto()
-        ETH_SIGN = auto()
-        WALLET = auto()
-        VALIDATOR = auto()
-        PRE_SIGNED = auto()
-        N_SIGNATURE_TYPES = auto()
-
-
-class Order(TypedDict):  # pylint: disable=too-many-instance-attributes
-    """A Web3-compatible representation of the Exchange.Order struct."""
-
-    makerAddress: str
-    """Address that created the order."""
-
-    takerAddress: str
-    """Address that is allowed to fill the order.
-
-    If set to 0, any address is allowed to fill the order.
-    """
-
-    feeRecipientAddress: str
-    """Address that will recieve fees when order is filled."""
-
-    senderAddress: str
-    """Address that is allowed to call Exchange contract methods that affect
-    this order. If set to 0, any address is allowed to call these methods.
-    """
-
-    makerAssetAmount: int
-    """Amount of makerAsset being offered by maker. Must be greater than 0."""
-
-    takerAssetAmount: int
-    """Amount of takerAsset being bid on by maker. Must be greater than 0."""
-
-    makerFee: int
-    """Amount of ZRX paid to feeRecipient by maker when order is filled.  If
-    set to 0, no transfer of ZRX from maker to feeRecipient will be attempted.
-    """
-
-    takerFee: int
-    """Amount of ZRX paid to feeRecipient by taker when order is filled.  If
-    set to 0, no transfer of ZRX from taker to feeRecipient will be attempted.
-    """
-
-    expirationTimeSeconds: int
-    """Timestamp in seconds at which order expires."""
-
-    salt: int
-    """Arbitrary number to facilitate uniqueness of the order's hash."""
-
-    makerAssetData: bytes
-    """Encoded data that can be decoded by a specified proxy contract when
-    transferring makerAsset. The last byte references the id of this proxy.
-    """
-
-    takerAssetData: bytes
-    """Encoded data that can be decoded by a specified proxy contract when
-    transferring takerAsset. The last byte references the id of this proxy.
-    """
-
-
-def make_empty_order() -> Order:
-    """Construct an empty order.
-
-    Initializes all strings to "0x0000000000000000000000000000000000000000",
-    all numbers to 0, and all bytes to nulls.
-    """
-    return {
-        "makerAddress": _Constants.null_address,
-        "takerAddress": _Constants.null_address,
-        "senderAddress": _Constants.null_address,
-        "feeRecipientAddress": _Constants.null_address,
-        "makerAssetData": (b"\x00") * 20,
-        "takerAssetData": (b"\x00") * 20,
-        "salt": 0,
-        "makerFee": 0,
-        "takerFee": 0,
-        "makerAssetAmount": 0,
-        "takerAssetAmount": 0,
-        "expirationTimeSeconds": 0,
-    }
-
-
-def order_to_jsdict(
-    order: Order, exchange_address="0x0000000000000000000000000000000000000000"
-) -> dict:
-    """Convert a Web3-compatible order struct to a JSON-schema-compatible dict.
-
-    More specifically, do explicit decoding for the `bytes`:code: fields.
-
-    >>> import pprint
-    >>> pprint.pprint(order_to_jsdict(
-    ...     {
-    ...         'makerAddress': "0x0000000000000000000000000000000000000000",
-    ...         'takerAddress': "0x0000000000000000000000000000000000000000",
-    ...         'feeRecipientAddress':
-    ...             "0x0000000000000000000000000000000000000000",
-    ...         'senderAddress': "0x0000000000000000000000000000000000000000",
-    ...         'makerAssetAmount': 1,
-    ...         'takerAssetAmount': 1,
-    ...         'makerFee': 0,
-    ...         'takerFee': 0,
-    ...         'expirationTimeSeconds': 1,
-    ...         'salt': 1,
-    ...         'makerAssetData': (0).to_bytes(1, byteorder='big') * 20,
-    ...         'takerAssetData': (0).to_bytes(1, byteorder='big') * 20,
-    ...     },
-    ... ))
-    {'exchangeAddress': '0x0000000000000000000000000000000000000000',
-     'expirationTimeSeconds': 1,
-     'feeRecipientAddress': '0x0000000000000000000000000000000000000000',
-     'makerAddress': '0x0000000000000000000000000000000000000000',
-     'makerAssetAmount': 1,
-     'makerAssetData': '0x0000000000000000000000000000000000000000',
-     'makerFee': 0,
-     'salt': 1,
-     'senderAddress': '0x0000000000000000000000000000000000000000',
-     'takerAddress': '0x0000000000000000000000000000000000000000',
-     'takerAssetAmount': 1,
-     'takerAssetData': '0x0000000000000000000000000000000000000000',
-     'takerFee': 0}
-    """
-    jsdict = cast(Dict, copy(order))
-
-    # encode bytes fields
-    jsdict["makerAssetData"] = "0x" + order["makerAssetData"].hex()
-    jsdict["takerAssetData"] = "0x" + order["takerAssetData"].hex()
-
-    jsdict["exchangeAddress"] = exchange_address
-
-    assert_valid(jsdict, "/orderSchema")
-
-    return jsdict
-
-
-def jsdict_order_to_struct(jsdict: dict) -> Order:
-    r"""Convert a JSON-schema-compatible dict order to a Web3-compatible struct.
-
-    More specifically, do explicit encoding of the `bytes`:code: fields.
-
-    >>> import pprint
-    >>> pprint.pprint(jsdict_order_to_struct(
-    ...     {
-    ...         'makerAddress': "0x0000000000000000000000000000000000000000",
-    ...         'takerAddress': "0x0000000000000000000000000000000000000000",
-    ...         'feeRecipientAddress': "0x0000000000000000000000000000000000000000",
-    ...         'senderAddress': "0x0000000000000000000000000000000000000000",
-    ...         'makerAssetAmount': 1000000000000000000,
-    ...         'takerAssetAmount': 1000000000000000000,
-    ...         'makerFee': 0,
-    ...         'takerFee': 0,
-    ...         'expirationTimeSeconds': 12345,
-    ...         'salt': 12345,
-    ...         'makerAssetData': "0x0000000000000000000000000000000000000000",
-    ...         'takerAssetData': "0x0000000000000000000000000000000000000000",
-    ...         'exchangeAddress': "0x0000000000000000000000000000000000000000",
-    ...     },
-    ... ))
-    {'expirationTimeSeconds': 12345,
-     'feeRecipientAddress': '0x0000000000000000000000000000000000000000',
-     'makerAddress': '0x0000000000000000000000000000000000000000',
-     'makerAssetAmount': 1000000000000000000,
-     'makerAssetData': b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
-                       b'\x00\x00\x00\x00\x00\x00\x00\x00',
-     'makerFee': 0,
-     'salt': 12345,
-     'senderAddress': '0x0000000000000000000000000000000000000000',
-     'takerAddress': '0x0000000000000000000000000000000000000000',
-     'takerAssetAmount': 1000000000000000000,
-     'takerAssetData': b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
-                       b'\x00\x00\x00\x00\x00\x00\x00\x00',
-     'takerFee': 0}
-    """  # noqa: E501 (line too long)
-    assert_valid(jsdict, "/orderSchema")
-
-    order = cast(Order, copy(jsdict))
-
-    order["makerAssetData"] = bytes.fromhex(
-        remove_0x_prefix(jsdict["makerAssetData"])
-    )
-    order["takerAssetData"] = bytes.fromhex(
-        remove_0x_prefix(jsdict["takerAssetData"])
-    )
-
-    del order["exchangeAddress"]  # type: ignore
-    # silence mypy pending release of
-    # https://github.com/python/mypy/issues/3550
-
-    return order
-
-
-def generate_order_hash_hex(order: Order, exchange_address: str) -> str:
-    """Calculate the hash of the given order as a hexadecimal string.
-
-    :param order: The order to be hashed.  Must conform to `the 0x order JSON schema <https://github.com/0xProject/0x-monorepo/blob/development/packages/json-schemas/schemas/order_schema.json>`_.
-    :param exchange_address: The address to which the 0x Exchange smart
-        contract has been deployed.
-    :returns: A string, of ASCII hex digits, representing the order hash.
-
-    >>> generate_order_hash_hex(
-    ...     {
-    ...         'makerAddress': "0x0000000000000000000000000000000000000000",
-    ...         'takerAddress': "0x0000000000000000000000000000000000000000",
-    ...         'feeRecipientAddress': "0x0000000000000000000000000000000000000000",
-    ...         'senderAddress': "0x0000000000000000000000000000000000000000",
-    ...         'makerAssetAmount': "1000000000000000000",
-    ...         'takerAssetAmount': "1000000000000000000",
-    ...         'makerFee': "0",
-    ...         'takerFee': "0",
-    ...         'expirationTimeSeconds': "12345",
-    ...         'salt': "12345",
-    ...         'makerAssetData': (0).to_bytes(1, byteorder='big') * 20,
-    ...         'takerAssetData': (0).to_bytes(1, byteorder='big') * 20,
-    ...     },
-    ...     exchange_address="0x0000000000000000000000000000000000000000",
-    ... )
-    '55eaa6ec02f3224d30873577e9ddd069a288c16d6fb407210eecbc501fa76692'
-    """  # noqa: E501 (line too long)
-    assert_is_address(exchange_address, "exchange_address")
-    assert_valid(order_to_jsdict(order, exchange_address), "/orderSchema")
-
-    def pad_20_bytes_to_32(twenty_bytes: bytes):
-        return bytes(12) + twenty_bytes
-
-    def int_to_32_big_endian_bytes(i: int):
-        return i.to_bytes(32, byteorder="big")
-
-    eip712_domain_struct_hash = keccak(
-        _Constants.eip712_domain_struct_header
-        + pad_20_bytes_to_32(to_bytes(hexstr=exchange_address))
-    )
-
-    eip712_order_struct_hash = keccak(
-        _Constants.eip712_order_schema_hash
-        + pad_20_bytes_to_32(to_bytes(hexstr=order["makerAddress"]))
-        + pad_20_bytes_to_32(to_bytes(hexstr=order["takerAddress"]))
-        + pad_20_bytes_to_32(to_bytes(hexstr=order["feeRecipientAddress"]))
-        + pad_20_bytes_to_32(to_bytes(hexstr=order["senderAddress"]))
-        + int_to_32_big_endian_bytes(int(order["makerAssetAmount"]))
-        + int_to_32_big_endian_bytes(int(order["takerAssetAmount"]))
-        + int_to_32_big_endian_bytes(int(order["makerFee"]))
-        + int_to_32_big_endian_bytes(int(order["takerFee"]))
-        + int_to_32_big_endian_bytes(int(order["expirationTimeSeconds"]))
-        + int_to_32_big_endian_bytes(int(order["salt"]))
-        + keccak(to_bytes(hexstr=order["makerAssetData"].hex()))
-        + keccak(to_bytes(hexstr=order["takerAssetData"].hex()))
-    )
-
-    return keccak(
-        _Constants.eip191_header
-        + eip712_domain_struct_hash
-        + eip712_order_struct_hash
-    ).hex()
-
-
-class OrderInfo(NamedTuple):
-    """A Web3-compatible representation of the Exchange.OrderInfo struct."""
-
-    order_status: str
-    """A `str`:code: describing the order's validity and fillability."""
-
-    order_hash: bytes
-    """A `bytes`:code: object representing the EIP712 hash of the order."""
-
-    order_taker_asset_filled_amount: int
-    """An `int`:code: indicating the amount that has already been filled."""
-
-
-def is_valid_signature(
-    provider: BaseProvider, data: str, signature: str, signer_address: str
-) -> Tuple[bool, str]:
-    """Check the validity of the supplied signature.
-
-    Check if the supplied `signature`:code: corresponds to signing `data`:code:
-    with the private key corresponding to `signer_address`:code:.
-
-    :param provider: A Web3 provider able to access the 0x Exchange contract.
-    :param data: The hex encoded data signed by the supplied signature.
-    :param signature: The hex encoded signature.
-    :param signer_address: The hex encoded address that signed the data to
-        produce the supplied signature.
-    :returns: Tuple consisting of a boolean and a string.  Boolean is true if
-        valid, false otherwise.  If false, the string describes the reason.
-
-    >>> is_valid_signature(
-    ...     Web3.HTTPProvider("http://127.0.0.1:8545"),
-    ...     '0x6927e990021d23b1eb7b8789f6a6feaf98fe104bb0cf8259421b79f9a34222b0',
-    ...     '0x1B61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc3340349190569279751135161d22529dc25add4f6069af05be04cacbda2ace225403',
-    ...     '0x5409ed021d9299bf6814279a6a1411a7e866a631',
-    ... )
-    (True, '')
-    """  # noqa: E501 (line too long)
-    assert_is_provider(provider, "provider")
-    assert_is_hex_string(data, "data")
-    assert_is_hex_string(signature, "signature")
-    assert_is_address(signer_address, "signer_address")
-
-    web3_instance = Web3(provider)
-    # false positive from pylint: disable=no-member
-    contract_address = NETWORK_TO_ADDRESSES[
-        NetworkId(int(web3_instance.net.version))
-    ].exchange
-    # false positive from pylint: disable=no-member
-    contract: datatypes.Contract = web3_instance.eth.contract(
-        address=to_checksum_address(contract_address),
-        abi=zero_ex.contract_artifacts.abi_by_name("Exchange"),
-    )
-    try:
-        return (
-            contract.call().isValidSignature(
-                data, to_checksum_address(signer_address), signature
-            ),
-            "",
-        )
-    except web3.exceptions.BadFunctionCallOutput as exception:
-        known_revert_reasons = [
-            "LENGTH_GREATER_THAN_0_REQUIRED",
-            "SIGNATURE_ILLEGAL",
-            "SIGNATURE_UNSUPPORTED",
-            "LENGTH_0_REQUIRED",
-            "LENGTH_65_REQUIRED",
-        ]
-        for known_revert_reason in known_revert_reasons:
-            if known_revert_reason in str(exception):
-                return (False, known_revert_reason)
-        return (False, f"Unknown: {exception}")
-
-
-class ECSignature(TypedDict):
-    """Object representation of an elliptic curve signature's parameters."""
-
-    v: int
-    r: str
-    s: str
-
-
-def _parse_signature_hex_as_vrs(signature_hex: str) -> ECSignature:
-    """Parse signature hex as a concatentation of EC parameters ordered V, R, S.
-
-    >>> _parse_signature_hex_as_vrs('0x1b117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d872871137feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b03')
-    {'v': 27, 'r': '117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d87287113', 's': '7feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b'}
-    """  # noqa: E501 (line too long)
-    signature: ECSignature = {
-        "v": int(signature_hex[2:4], 16),
-        "r": signature_hex[4:68],
-        "s": signature_hex[68:132],
-    }
-    if signature["v"] == 0 or signature["v"] == 1:
-        signature["v"] = signature["v"] + 27
-    return signature
-
-
-def _parse_signature_hex_as_rsv(signature_hex: str) -> ECSignature:
-    """Parse signature hex as a concatentation of EC parameters ordered R, S, V.
-
-    >>> _parse_signature_hex_as_rsv('0x117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d872871137feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b00')
-    {'r': '117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d87287113', 's': '7feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b', 'v': 27}
-    """  # noqa: E501 (line too long)
-    signature: ECSignature = {
-        "r": signature_hex[2:66],
-        "s": signature_hex[66:130],
-        "v": int(signature_hex[130:132], 16),
-    }
-    if signature["v"] == 0 or signature["v"] == 1:
-        signature["v"] = signature["v"] + 27
-    return signature
-
-
-def _convert_ec_signature_to_vrs_hex(signature: ECSignature) -> str:
-    """Convert elliptic curve signature object to hex hash string.
-
-    >>> _convert_ec_signature_to_vrs_hex(
-    ...     {
-    ...         'r': '117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d87287113',
-    ...         's': '7feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b',
-    ...         'v': 27
-    ...     }
-    ... )
-    '0x1b117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d872871137feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b'
-    """  # noqa: E501 (line too long)
-    return (
-        "0x"
-        + signature["v"].to_bytes(1, byteorder="big").hex()
-        + signature["r"]
-        + signature["s"]
-    )
-
-
-def sign_hash(
-    provider: BaseProvider, signer_address: str, hash_hex: str
-) -> str:
-    """Sign a message with the given hash, and return the signature.
-
-    :param provider: A Web3 provider.
-    :param signer_address: The address of the signing account.
-    :param hash_hex: A hex string representing the hash, like that returned
-        from `generate_order_hash_hex()`:code:.
-    :returns: A string, of ASCII hex digits, representing the signature.
-
-    >>> provider = Web3.HTTPProvider("http://127.0.0.1:8545")
-    >>> sign_hash(
-    ...     provider,
-    ...     Web3(provider).personal.listAccounts[0],
-    ...     '0x34decbedc118904df65f379a175bb39ca18209d6ce41d5ed549d54e6e0a95004',
-    ... )
-    '0x1b117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d872871137feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b03'
-    """  # noqa: E501 (line too long)
-    assert_is_provider(provider, "provider")
-    assert_is_address(signer_address, "signer_address")
-    assert_is_hex_string(hash_hex, "hash_hex")
-
-    web3_instance = Web3(provider)
-    # false positive from pylint: disable=no-member
-    signature = web3_instance.eth.sign(  # type: ignore
-        signer_address, hexstr=hash_hex.replace("0x", "")
-    ).hex()
-
-    valid_v_param_values = [27, 28]
-
-    # HACK: There is no consensus on whether the signatureHex string should be
-    # formatted as v + r + s OR r + s + v, and different clients (even
-    # different versions of the same client) return the signature params in
-    # different orders. In order to support all client implementations, we
-    # parse the signature in both ways, and evaluate if either one is a valid
-    # signature.  r + s + v is the most prevalent format from eth_sign, so we
-    # attempt this first.
-
-    ec_signature = _parse_signature_hex_as_rsv(signature)
-    if ec_signature["v"] in valid_v_param_values:
-        signature_as_vrst_hex = (
-            _convert_ec_signature_to_vrs_hex(ec_signature)
-            + _Constants.SignatureType.ETH_SIGN.value.to_bytes(
-                1, byteorder="big"
-            ).hex()
-        )
-
-        (valid, _) = is_valid_signature(
-            provider, hash_hex, signature_as_vrst_hex, signer_address
-        )
-
-        if valid is True:
-            return signature_as_vrst_hex
-
-    ec_signature = _parse_signature_hex_as_vrs(signature)
-    if ec_signature["v"] in valid_v_param_values:
-        signature_as_vrst_hex = (
-            _convert_ec_signature_to_vrs_hex(ec_signature)
-            + _Constants.SignatureType.ETH_SIGN.value.to_bytes(
-                1, byteorder="big"
-            ).hex()
-        )
-        (valid, _) = is_valid_signature(
-            provider, hash_hex, signature_as_vrst_hex, signer_address
-        )
-
-        if valid is True:
-            return signature_as_vrst_hex
-
-    raise RuntimeError(
-        "Signature returned from web3 provider is in an unknown format."
-        + " Attempted to parse as RSV and as VRS."
-    )
diff --git a/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py b/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py
deleted file mode 100644
index f8e9bc42b..000000000
--- a/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py
+++ /dev/null
@@ -1,141 +0,0 @@
-"""Asset data encoding and decoding utilities."""
-
-from mypy_extensions import TypedDict
-
-import eth_abi
-
-from zero_ex.dev_utils import abi_utils
-from zero_ex.dev_utils.type_assertions import assert_is_string, assert_is_int
-
-
-ERC20_ASSET_DATA_BYTE_LENGTH = 36
-ERC721_ASSET_DATA_MINIMUM_BYTE_LENGTH = 53
-SELECTOR_LENGTH = 10
-
-
-class ERC20AssetData(TypedDict):
-    """Object interface to ERC20 asset data."""
-
-    asset_proxy_id: str
-    """asset proxy id"""
-
-    token_address: str
-
-
-class ERC721AssetData(TypedDict):
-    """Object interface to ERC721 asset data."""
-
-    asset_proxy_id: str
-    token_address: str
-    token_id: int
-
-
-def encode_erc20_asset_data(token_address: str) -> str:
-    """Encode an ERC20 token address into an asset data string.
-
-    :param token_address: the ERC20 token's contract address.
-    :returns: hex encoded asset data string, usable in the makerAssetData or
-        takerAssetData fields in a 0x order.
-
-    >>> encode_erc20_asset_data('0x1dc4c1cefef38a777b15aa20260a54e584b16c48')
-    '0xf47261b00000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48'
-    """
-    assert_is_string(token_address, "token_address")
-
-    return (
-        "0x"
-        + abi_utils.simple_encode("ERC20Token(address)", token_address).hex()
-    )
-
-
-def decode_erc20_asset_data(asset_data: str) -> ERC20AssetData:
-    """Decode an ERC20 asset data hex string.
-
-    :param asset_data: String produced by prior call to encode_erc20_asset_data()
-
-    >>> decode_erc20_asset_data("0xf47261b00000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48")
-    {'asset_proxy_id': '0xf47261b0', 'token_address': '0x1dc4c1cefef38a777b15aa20260a54e584b16c48'}
-    """  # noqa: E501 (line too long)
-    assert_is_string(asset_data, "asset_data")
-
-    if len(asset_data) < ERC20_ASSET_DATA_BYTE_LENGTH:
-        raise ValueError(
-            "Could not decode ERC20 Proxy Data. Expected length of encoded"
-            + f" data to be at least {str(ERC20_ASSET_DATA_BYTE_LENGTH)}."
-            + f" Got {str(len(asset_data))}."
-        )
-
-    asset_proxy_id: str = asset_data[0:SELECTOR_LENGTH]
-    if asset_proxy_id != abi_utils.method_id("ERC20Token", ["address"]):
-        raise ValueError(
-            "Could not decode ERC20 Proxy Data. Expected Asset Proxy Id to be"
-            + f" ERC20 ({abi_utils.method_id('ERC20Token', ['address'])})"
-            + f" but got {asset_proxy_id}."
-        )
-
-    # workaround for https://github.com/PyCQA/pylint/issues/1498
-    # pylint: disable=unsubscriptable-object
-    token_address = eth_abi.decode_abi(
-        ["address"], bytes.fromhex(asset_data[SELECTOR_LENGTH:])
-    )[0]
-
-    return {"asset_proxy_id": asset_proxy_id, "token_address": token_address}
-
-
-def encode_erc721_asset_data(token_address: str, token_id: int) -> str:
-    """Encode an ERC721 asset data hex string.
-
-    :param token_address: the ERC721 token's contract address.
-    :param token_id: the identifier of the asset's instance of the token.
-    :returns: hex encoded asset data string, usable in the makerAssetData or
-        takerAssetData fields in a 0x order.
-
-    >>> encode_erc721_asset_data('0x1dc4c1cefef38a777b15aa20260a54e584b16c48', 1)
-    '0x025717920000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c480000000000000000000000000000000000000000000000000000000000000001'
-    """  # noqa: E501 (line too long)
-    assert_is_string(token_address, "token_address")
-    assert_is_int(token_id, "token_id")
-
-    return (
-        "0x"
-        + abi_utils.simple_encode(
-            "ERC721Token(address,uint256)", token_address, token_id
-        ).hex()
-    )
-
-
-def decode_erc721_asset_data(asset_data: str) -> ERC721AssetData:
-    """Decode an ERC721 asset data hex string.
-
-    >>> decode_erc721_asset_data('0x025717920000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c480000000000000000000000000000000000000000000000000000000000000001')
-    {'asset_proxy_id': '0x02571792', 'token_address': '0x1dc4c1cefef38a777b15aa20260a54e584b16c48', 'token_id': 1}
-    """  # noqa: E501 (line too long)
-    assert_is_string(asset_data, "asset_data")
-
-    if len(asset_data) < ERC721_ASSET_DATA_MINIMUM_BYTE_LENGTH:
-        raise ValueError(
-            "Could not decode ERC721 Asset Data. Expected length of encoded"
-            + f"data to be at least {ERC721_ASSET_DATA_MINIMUM_BYTE_LENGTH}. "
-            + f"Got {len(asset_data)}."
-        )
-
-    asset_proxy_id: str = asset_data[0:SELECTOR_LENGTH]
-    if asset_proxy_id != abi_utils.method_id(
-        "ERC721Token", ["address", "uint256"]
-    ):
-        raise ValueError(
-            "Could not decode ERC721 Asset Data. Expected Asset Proxy Id to be"
-            + f" ERC721 ("
-            + f"{abi_utils.method_id('ERC721Token', ['address', 'uint256'])}"
-            + f"), but got {asset_proxy_id}"
-        )
-
-    (token_address, token_id) = eth_abi.decode_abi(
-        ["address", "uint256"], bytes.fromhex(asset_data[SELECTOR_LENGTH:])
-    )
-
-    return {
-        "asset_proxy_id": asset_proxy_id,
-        "token_address": token_address,
-        "token_id": token_id,
-    }
diff --git a/python-packages/order_utils/src/zero_ex/order_utils/py.typed b/python-packages/order_utils/src/zero_ex/order_utils/py.typed
deleted file mode 100644
index e69de29bb..000000000
--- a/python-packages/order_utils/src/zero_ex/order_utils/py.typed
+++ /dev/null