Hello Andreas, I noticed you filed ITP's for cartopy, iris and python-netcdf about one year ago. In the mean time Angelos Tzotsos has also packaged these for the osgeo live dvd (1). These packages seem a nice fit for debian gis, and we can help you with packaging if you like. Johan (1) https://launchpad.net/~osgeolive/+archive/ubuntu/nightly/+packages