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Efficient modeling interface for mathematical optimization in Python

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Following our previous discussion on HiGHS repo, can callback be supported for HiGHs as well? I can help with testing.

enhancement

# Description This PR adds wheels for _linux-aarch64_. ## Changes - Adds `*-manylinux_aarch64` wheels build target(s). - Moves `cibuildwheel` configuration to `pyproject.toml`. - Modifies `{...}/setup_optimizers_linux/action.yml` to also download the optimizers...

Hey! Thank you for the awesome project! It's really performant and works nicely. One thing that I found missing are wheels for linux-aarch64. Nowadays, a good chunk of cloud or...

In COPT 7.2.5, NLP is supported, but now only in C API, see [General Nonlinear Programming (NLP)](https://guide.coap.online/copt/en-doc/modeling.html#general-nonlinear-programming-nlp). Is there any plan to support it in pyoptinterface?

Xpress is also a widely used solver. Would that on your roadmap?

new-solver-request

Hi there! Around a month ago COPT 8.0.1 was [released](https://github.com/COPT-Public/COPT-Release/commit/546176df91336dc0684633880289b5de15d71af3) with tons of improvements. Are there plans for updating the version handled by PyOptInterface? Thank you for this amazing library!

Are there plans to add support for quadratic optimizers, like osqp? It would be a good performance boost over ipopt for the problems that support it, e.g. state estimate.

Are there any plans to support Nvidia's cuOpt? PuLP had recently included it.

new-solver-request

Any plans to support multiobjective optimization? Both Highs, COPT and Gurobi already support it (blending and hierarchical) Or, I assume, it could just be done by accessing solver parameters? But...

Hi, Is there any plan to support [Knitro](https://www.artelys.com/solvers/knitro/) NLP solver ?

new-solver-request