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GeezerVison is showing github.com — nanobind Umbrella · Issue #32560 · matplotlib/matplotlib

nanobind Umbrella #32560

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nanobind Umbrella#32560
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Description

@iccir
iccir
opened on Oct 30, 2026
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This is an umbrella issue to keep track of nanobind pull requests as we transition to nanobind. I have also made a project.

I'm using #32411 and my nanobind-experiment branch to represent the finished product.

Pull Requests

Phase 1 (Prepare for nanobind)

Pull Request Prerequisites Description
#32484 - Introduces mpl::format for error strings
#32547 - Cleans up transform_affine() to prepare for #32536
#32532 - Introduces mpl::array and mpl::defer. Adopts them in qhull.
#32576 #32532 Introduce mpl buffer functions to replace def_buffer()
#32536 (Draft) #32532 Fully adopts mpl::array and mpl::defer
#32581 (Draft) #32536 Replaces pybind11 type casters with mpl::convert
Pending #32581 Adds nanobind implementations of utilities (mpl::array, etc)

Phase 2 (Adopt nanobind as a static library)

Once all of Phase 1 lands, we can migrate individual modules. Most of these PRs will simply change py::foo to nb::foo as well as other minor renames.

Pull Request Description
Pending Migrate _backend_agg
Pending Migrate _c_internal_utils.cpython
Pending Migrate ft2font
Pending Migrate _image
Pending Migrate _path
Pending Migrate _qhull
Pending Migrate _tkagg
Pending Migrate _tri

Phase 3 (Adopt Split Mode)

Once all of Phase 2 lands, we can adopt Split Mode.

Pull Request Description
Pending Adopt Split Mode (will need help from Elliott to figure out what to do on wasm/3.14t/etc.)

Activity

  1. iccir
    added
    Maintenance
    on Oct 30, 2026

  2. timhoffm commented on Oct 30, 2026

    @timhoffm
    timhoffm
    on Oct 30, 2026
    Member
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    Not mandatory, but you could put this in a project. https://github.com/matplotlib/matplotlib/projects

    Reacted by Ricci Adams
  3. iccir
    added this to nanobindon Nov 3, 2026
  4. github-project-automation
    moved this to Todo in nanobindon Nov 3, 2026
  5. iccir
    moved this from Todo to N/A in nanobindon Nov 3, 2026

  6. iccir commented on Nov 6, 2026

    @iccir
    iccir
    on Nov 6, 2026
    ContributorAuthor
    More actions

    Not mandatory, but you could put this in a project.

    Thanks! I made a project as well.

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