alteryx/evalml

__hash__() for PipelineBase

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#2,016 opened on Mar 23, 2021

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enhancementgood first issue

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Description

@chukarsten commented on Wed Mar 17 2021

To allow a quick comparison of Pipelines in collections that require hashable objects, e.g. set([pipeline_a, pipeline_b, pipeline_c]) == set(pipelines), we should define __hash__() for the PipelineBase.

Contributor guide

Research direction
Find the PipelineBase class definition and its eq method, then implement hash consistent with equality, ensuring it returns an integer based on immutable attributes like parameters.
Tech stack
python
Domain
machine learning
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80