Hm I think not directly, but I think easily hackable.
Try to comment
Code:
geometry.PartitionBoundary (mp, mp.maxh, *mesh);
in netgen/libsrc/geom2d/genmesh2d.cpp:415.
And additionally export the GenerateMesh function that takes a mesh argument to python in python_geom2d.cpp
You would additionally need to export the domin and domout parameters for the Element1D and set them correctly (like leftdomain and rightdomain in the geo).
Hope this helps, let me know if something is not working.
Best
Christopher