I have a list of tuples in Python that I would like to output to a table in reStructuredText.
The docutils library has great support for converting reStructuredText
You can choose to dump into a CSV from Python and then use the csv-table feature of RST as in http://docutils.sourceforge.net/docs/ref/rst/directives.html#csv-table It has got a :file: directive to simply include a csv file with data.