Although Shapely does not read or write data files, you can access geometries from outside of the library, for instance, by feeding it vector data written in json. The following script creates a polygon in json that is read into Shapely in line. Next, the mapping command returns a new, independent geometry with coordinates copied from the context:
In: import json from shapely.geometry import mapping, shape p = shape(json.loads('{"type": "Polygon", "coordinates": [[[1,1], [1,3 ], [3,3]]]}')) print(json.dumps(mapping(p))) p.areaOut: {"type": "Polygon", "coordinates": [[[1.0, 1.0], [1.0, 3.0], [3.0, 3.0], [1.0, 1.0]]]} 2.0 # result of p.area
