rhylthyme-timeline

The timing engine and Gantt renderer behind rhylthyme.com, packaged for pip. It draws a Rhylthyme program (parallel tracks of timed steps with shared-equipment limits) as an SVG, PNG or PDF, publication-ready. The code is the JavaScript module @rhylthyme/timeline; this package carries a copy and runs it with Node.js 18 or newer, which you need on your PATH.

pip install rhylthyme-timeline
rhylthyme-render dinner.json -o dinner.svg
rhylthyme-render dinner.json -o dinner.png --style web --palette vivid --start-at 2026-10-03T12:50:00
rhylthyme-render dinner.json -o figure.pdf --style publication --legend right
rhylthyme-render --help

PNG needs rsvg-convert on the PATH (librsvg) or the @resvg/resvg-js npm package; SVG and PDF need nothing else.

From Python:

from rhylthyme_timeline import render, renderer_path
svg = render(program, style="web", colorBy="task")
renderer_path()   # the index.js to require() from your own Node code

pip install rhylthyme brings this package in together with the rhylthyme command-line tool and the importers.