The OGR library, combined with its Python bindings, forms the most important part for working with vector data in Python. With it, you can create points, lines, and polygons, and perform spatial operations on these elements. For example, you can calculate the area of a geometry, overlay different data on top of each other, and use proximity tools such as buffers. Additionally, just as with ogrinfo and ogr2ogr, the OGR library offers tools to read vector data files, iterate over individual elements, and select and reproject data.