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svg.charts 3.1

Python SVG Charting Library

Package Documentation


Status and License

svg.charts is a pure-python library for generating charts and graphs in SVG, originally based on the SVG::Graph Ruby package by Sean E. Russel.

svg.charts supercedes svg_charts 1.1 and 1.2.

svg.charts is written by Jason R. Coombs. It is licensed under an MIT-style permissive license.

You can install it with easy_install or pip:

easy_install svg.charts
pip install svg.charts

Or, check out the mercurial repository source.

Tests are continuously run by Travis-CI:

To run the tests, refer to the .travis.yml file for the steps run on the Travis-CI hosts.


svg.charts depends heavily on lxml and cssutils. Thanks to the contributors of those projects for stable, performant, standards-based packages.

Sean E. Russel for creating the SVG::Graph Ruby package from which this Python port was originally derived.

Leo Lapworth for creating the SVG::TT::Graph package which the Ruby port was based on.

Stephen Morgan for creating the TT template and SVG.

Getting Started

svg.charts has some examples (taken directly from the reference implementation) in tests/ These examples show sample usage of the various chart types. They should provide a good starting point for learning the usage of the library.

An example of using svg.charts in a CherryPy web app can be found in If the site is working, you can see the rendered output here.

svg.charts also provides API documentation.

Upgrade Notes

Upgrading from 1.x to 2.0

I suggest removing SVG 1.0 from the python installation. This involves removing the SVG directory (or svg_chart*) from site-packages.

Change import statements to import from the new namespace, so:

from SVG import Bar


from import VerticalBar

More To-Dos

  • Documentation! This package desperately needs some high-level, tutorial-style how-tos, and not just links to example code.
  • Implement javascript-based animation (See JellyGraph for a Silverlight example of what simple animation can do for a charting library).

Reporting Bugs and Getting Help

This project is hosted at BitBucket. Please use that site for reporting bugs and requesting help. Patches are also welcome.

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