svg diagrams using python

Question

I am looking for a library to generate svg diagrams in python (I fetch data from a sql database). I have found python-gd, but it has not much documentation and last update was in 2005 so I wonder if there are any other libraries that are good for this purpose.

I am mostly thinking about simple line graphs, something like this:

Answer 1

Consider svgwrite http://packages.python.org/svgwrite/

Answer 2

As you're looking for simple line graphics, probably, CairoPlot will fit your needs as it can generate svg output files out of the box. Take a look at this.

This example image shows only a few of its capabilities. Using the trunk version available at launchpad you'll be able to add a legend box and add axis titles.

Besides that, using the trunk version, it's possible to generate:

• DotLine charts (the ones I believe you need)
• Scatter charts
• Pie/Donut charts
• Horizontal/Vertical Bar charts
• Gantt charts

Answer 3

Being not exactly related to SVG plots, but searching for the same thing I have found a good source of carefully collected useful info to answer your question: http://wiki.python.org/moin/NumericAndScientific/Plotting

Answer 4

I have tried to collate a list of available charting libraries(its an ongoing work, wherein i keep updating the list) : http://blizzardzblogs.blogspot.com/2010/12/data-visualization-charts-and.html

I feel that protovis would do the job for you. Its

• light weight,
• generates svg (which can be exported easily) and
• is javascript

So nothing more to learn :)

Answer 5

pyCairo is an option worth looking at.

Answer 6

svgfig is worth a look:

http://code.google.com/p/svgfig/