Vega-Altair is a Python library for creating statistical visualizations declaratively. By combining data, encodings, marks, transforms, and interactions, you can build Vega-Lite-based charts with concise code.
It supports not only basic charts such as scatter plots, bar charts, and line charts, but also facets, aggregation, filtering, selections, and tooltips through a consistent grammar. It is a practical way to learn reproducible visualization specifications while doing data analysis in Python.

