kiwisolver · PyPI
https://pypi.org/project/kiwisolver27.08.2021 · 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 usecases gaining a 40x improvement. Memory savings are consistently > 5x. In addition to the C++ solver, Kiwi ships with hand-rolled Python bindings for Python 3.7+.