from mapscript import mapObj,layerObj wkt = '''PROJCS["ED50(ED77) / UTM zone 38N",GEOGCS["ED50(ED77)",DATUM["European_Datum_1950_1977",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6154"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4154"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],AUTHORITY["EPSG","2058"],AXIS["Easting",EAST],AXIS["Northing",NORTH]]''' m = mapObj('') m.setWKTProjection(wkt) lyr = layerObj(m) lyr.setWKTProjection(wkt)