OverflowError using get_GDSII_prisms

[ghost]

Hi,

I have made a recent post about an error I was getting after running mp.get_GDSII_prisms. To summarize, I took this script (which works fine) and just tried to add a user-defined function in order to make the index of the coupler vary. As suggested in my previous post, I tested with a simple function :

def test_material_function(p): return mp.Medium(index=2)

And this is how I called mp.get_GDSII_prisms :

upper_branch = mp.get_GDSII_prisms(test_material_function, gdsII_file, UPPER_BRANCH_LAYER, si_zmin, si_zmax)

This is the only change I made in the script. But it gives me this error :
OverflowError: in method 'get_GDSII_prisms', argument 3 of type 'int'

I don't really understand what it means. Why is this an OverflowError, and why it is on argument 3 when I changed argument 1. I looked for this kind of error on the internet but I didn't find anything. Someone mentioned that this could be due to Python3, but I tried on Python2 and it didn't change anything. I just noticed that when I gave an argument to test_material_function, the error disappear (but then, I don't have the argument of position anymore).

Has anyone had a similar error ? If so, is there another way to import the geometry from a GDS file, and modify its index ?

Thank you for your help!

[stevengj]

Thanks for the report. This is a bug, and should be fixed by #1652.