Some issue with color mapping is preventing show from working correctly

[Rory-Lambert]

Trying to show any GDSfile, even the example provided on the website fails with the following error;

File "C:\Users\me\Anaconda2\lib\site-packages\gdsCAD\core.py", line 105, in _layer_properties
colors += matplotlib.cm.gist_ncar(np.linspace(0.98, 0, 15))
TypeError: ufunc 'add' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

[Rory-Lambert]

This has actually been identified previously on stackoverflow. The top voted answer sorted the issue for me.
https://stackoverflow.com/questions/34264282/typeerror-ufunc-add-did-not-contain-a-loop