Back in 2014 Enthought's build of GDAL/OGR was missing important functionality. In October of that year John from Enthought wrote:
"Correct, there are many possible build configurations of GDAL/OGR, and geos is not currently supported by Enthought's build configuration. We will consider adding it in a future build. "
Did this happen? For example, can we now use OGR's buffer method?