pybind / pybind/pybind11

Support for dataclasses

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#2,065 1 comment 8 reactions 0 assignees View on GitHub

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enhancement help wanted
Dominant language
C++
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Forks
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Avg merge
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Merged PRs (30d)
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Description

pybind11 talks of course about how to wrap C++ classes so that they are accessible in python. The issue for me is that on the python side of things, we are using dataclasses very extensively. They provide a lot of useful built in features as well as type annotations that you can use with mypy. If you are wrapping a C++ class, then obviously, all the types are already present, so in principle it would be possible at no extra cost to export a dataclass rather than a regular python class, which would be really useful.

Maybe this is not possible to do from a purely C/C++ module, but if it is it would be pretty amazing.

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Research direction

No files, tests, or entry points are named in the issue. Start by assessing whether pybind11 can expose wrapped C++ classes as Python dataclasses while preserving existing behavior; done means a tested implementation or a documented feasibility boundary.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, python
Domain
backend-api-design
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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