Alternative to accessing attributes of KedroContext after 0.18.0

[willashford]

Introduction

I'm looking to understand the preferred methods of accessing KedroContext attributes for testing purposes after 0.18.0, as I receive a deprecation warning.

Background

As part of managing a kedro project, I like to have tests that check attributes like the pipeline or catalog for coherence to naming conventions, etc. This is typically done via creating a kedro context object as a test fixture and running tests against the objects attributes.

Problem

When I do this currently, I'm presented with a warning about deprecation of accessing these attributes (app name, pipeline, etc) after 0.18.0. What is the preferred approach to accessing these attributes in a future proof way?

[datajoely]

Hi @willashford - we talked about how the Context has become too bloated in this webinar last week, will get back to you on where those specific attributes will live in 0.18.0

[lorenabalan]

Hi @willashford , the majority of the currently deprecated properties can be found in kedro.framework.project or in project metadata in <project_name>/pyproject.toml:

from kedro.framework.project import pipelines, settings
# you might need to also import `from kedro.framework.startup import bootstrap_project` and call it  for your tests

• context.pipeline & context.pipelines - import pipelines and use that instead (or pipelines["__default__"])
• context.io - duplicate of context.catalog, which we recommend - 0.18.0 might also see this changed though
• context.package_name - is in metadata, which is the one returned by bootstrap_project or by _get_project_metadata - i.e. metadata.package_name
• context.CONF_ROOT - import settings and use settings.CONF_ROOT

settings corresponds to your project's settings.py, and pipelines to your pipeline_registry.py and/or pipeline registration hooks.

[lorenabalan]

A bit more context about settings and pipelines and why they are like that is here and here.

[datajoely]

FYI - I'm going to convert this to a discussion