pybind/pybind11

There can be only one (enum instance)

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#1,177 opened on Nov 9, 2017

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 (6 comments) (4 reactions) (0 assignees)C++ (2,005 forks)batch import
bugenhancementhelp wanted

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Description

Currently enums compare equal with == but not with is. I think it would be good if enums would be singletons like None instead.

Contributor guide

Research direction
Implement singleton behavior for enums in pybind11 by overriding the new method to cache instances and ensure that each enum value is created only once, similar to Python's None singleton.
Tech stack
cpython
Domain
backend
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonC++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60