The basemap add-on toolkit for matplotlib allows you to plot your data on a wide variety of map projections, with coastlines and political boundaries.
For an example of what it can do, see See http://www.scipy.org/wikis/topical_software/Maps.
This is mainly a bugfix release, with one significant new feature - the ability to plot data in ESRI shapefiles (thanks to pyshapelib by Bernhard Herzog).
Download it at http://sourceforge.net/projects/matplotlib/
-Jeff
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Jeffrey S. Whitaker Phone : (303)497-6313
NOAA/OAR/CDC R/CDC1 FAX : (303)497-6449
325 Broadway Web : http://www.cdc.noaa.gov/~jsw
Boulder, CO, USA 80305-3328 Office: Skaggs Research Cntr 1D-124