def __init__(
self, manifest: Dict[str, Any], w3: Web3, uri: Optional[str] = None
) -> None:
"""
A package should be created using one of the available
classmethods and a valid w3 instance.
"""
if not isinstance(manifest, dict):
raise TypeError(
"Package object must be initialized with a dictionary. "
f"Got {type(manifest)}"
)
if "manifest" not in manifest or manifest["manifest"] != "ethpm/3":
raise EthPMValidationError(
"Py-Ethpm currently only supports v3 ethpm manifests. "
"Please use the CLI to update or re-generate a v3 manifest. "
)
validate_manifest_against_schema(manifest)
validate_manifest_deployments(manifest)
validate_w3_instance(w3)
self.w3 = w3
self.w3.eth.defaultContractFactory = cast(Type[Contract], LinkableContract)
self.manifest = manifest
self._uri = uri
def update_w3(self, w3: Web3) -> "Package":
"""
Returns a new instance of `Package` containing the same manifest,
but connected to a different web3 instance.
.. doctest::
>>> new_w3 = Web3(Web3.EthereumTesterProvider())
>>> NewPackage = OwnedPackage.update_w3(new_w3)
>>> assert NewPackage.w3 == new_w3
>>> assert OwnedPackage.manifest == NewPackage.manifest
"""
validate_w3_instance(w3)
return Package(self.manifest, w3, self.uri)
def __init__(self,
manifest: Dict[str, Any],
w3: Web3,
uri: Optional[str] = None) -> None:
"""
A package should be created using one of the available
classmethods and a valid w3 instance.
"""
if not isinstance(manifest, dict):
raise TypeError(
"Package object must be initialized with a dictionary. "
f"Got {type(manifest)}")
validate_manifest_against_schema(manifest)
validate_manifest_deployments(manifest)
validate_w3_instance(w3)
self.w3 = w3
self.w3.eth.defaultContractFactory = LinkableContract
self.manifest = manifest
self._uri = uri
def test_validate_w3_instance_invalidates(w3):
with pytest.raises(ValueError):
assert validate_w3_instance(w3)
def test_validate_w3_instance_validates(w3):
assert validate_w3_instance(w3) is None
