def _run_node_synchronization(node: Node,
catalog: DataCatalog,
is_async: bool = False,
run_id: str = None) -> Node:
"""Run a single `Node` with inputs from and outputs to the `catalog`.
`KedroContext` class is initialized in every subprocess because of Windows
(latest OSX with Python 3.8) limitation.
Windows has no "fork", so every subprocess is a brand new process created via "spawn",
and KedroContext needs to be created in every subprocess in order to make
KedroContext logging setup and hook manager work.
Args:
node: The ``Node`` to run.
catalog: A ``DataCatalog`` containing the node's inputs and outputs.
is_async: If True, the node inputs and outputs are loaded and saved
asynchronously with threads. Defaults to False.
run_id: The id of the pipeline run.
Returns:
The node argument.
"""
if multiprocessing.get_start_method() == "spawn": # type: ignore
# pylint: disable=import-outside-toplevel
import kedro.framework.context.context as context # pragma: no cover
context.load_context(Path.cwd()) # pragma: no cover
# The hard-coded current working directory causes
# parallel runner to not work in notebook environment,
# but we will revisit this when we work on access `project_path`
# from within the runner and data in KedroContext
# See https://github.com/quantumblacklabs/private-kedro/issues/701.
return run_node(node, catalog, is_async, run_id)
def get_project_context(
key: str = "context", project_path: Path = None, **kwargs
) -> Any:
"""Gets the context value from context associated with the key.
Args:
key: Optional key to get associated value from Kedro context.
Supported keys are "verbose" and "context", and it defaults to "context".
project_path: Optional path to where the project root is to load the context.
If omitted, the current working directory will be used.
kwargs: Optional custom arguments defined by users, which will be passed into
the constructor of the projects KedroContext subclass.
Returns:
Requested value from Kedro context dictionary or the default if the key
was not found.
Raises:
KedroCliError: When the key is not found and the default value was not
specified.
"""
warnings.warn(
"`get_project_context` is now deprecated and will be removed in Kedro 0.18.0. "
"Please use `KedroSession.load_context()` to access the "
"`KedroContext` object. For more information, please visit "
"https://kedro.readthedocs.io/en/stable/04_kedro_project_setup/03_session.html",
DeprecationWarning,
)
project_path = project_path or Path.cwd()
context = load_context(project_path, **kwargs)
# Dictionary to be compatible with existing Plugins. Future plugins should
# retrieve necessary Kedro project properties from context
value = {"context": context, "verbose": KedroCliError.VERBOSE_ERROR}[key]
return deepcopy(value)
