{"library":"kiwisolver","type":"library","category":null,"description":"Kiwisolver is a fast implementation of the Cassowary constraint solver, designed to be lightweight and efficient. The current version is 1.5.0, released on March 9, 2026. The library is actively maintained and follows a regular release cadence, with updates approximately every few months.","language":"python","status":"active","version":"1.5.0","tags":["constraint solver","Python bindings","C++","optimization"],"last_verified":"Tue Jun 09","install":[{"cmd":"pip install kiwisolver","imports":["from kiwisolver import Solver"]}],"homepage":null,"github":"https://github.com/nucleic/kiwi","docs":"https://kiwisolver.readthedocs.io/en/latest/","changelog":"https://github.com/nucleic/kiwi/blob/main/releasenotes.rst","pypi":"https://pypi.org/project/kiwisolver/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":1.7,"avg_import_s":0,"wheel_type":"wheel"},"url":"https://checklist.day/v1/registry/kiwisolver/compatibility"}}