kiwisolver: Fast implementation of the Cassowary constraint solver - Packages and Features

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# kiwisolver: Fast implementation of the Cassowary constraint solver

## Description

From https://pypi.org/project/kiwisolver/

A fast implementation of the Cassowary constraint solver

Kiwi is an efficient C++ implementation of the Cassowary constraint solving algorithm. Kiwi is an implementation of the algorithm based on the seminal Cassowary paper. It is not a refactoring of the original C++ solver. Kiwi has been designed from the ground up to be lightweight and fast. Kiwi ranges from 10x to 500x faster than the original Cassowary solver with typical use cases gaining a 40x improvement. Memory savings are consistently > 5x.

In addition to the C++ solver, Kiwi ships with hand-rolled Python bindings.

## License

Modified BSD License

## Upstream Contact

https://github.com/nucleic/kiwi

## Type

standard

## Dependencies

- $(PYTHON)

- $(PYTHON_TOOLCHAIN)

- cppy: C++ headers for C extension development

## Version Information

package-version.txt:

    1.5.0

version_requirements.txt:

    kiwisolver >=1.4.8

## Equivalent System Packages

conda-forge

    $ conda install kiwisolver

Fedora/Redhat/CentOS

    $ sudo dnf install python3-kiwisolver

Gentoo Linux

    $ sudo emerge dev-python/kiwisolver

MacPorts

    $ sudo port install py-kiwisolver

Void Linux

    $ sudo xbps-install python3-kiwisolver

See https://repology.org/project/python:kiwisolver/versions

If the system package is installed and if the (experimental) option `--enable-system-site-packages` is passed to `./configure`, then `./configure` will check if the system package can be used.