Module that implements interaction with Eyelink eyetracker (graphics for calibration) for Shady, a python toolkit for visual stimuli display.
To use the demo on Mac OS or Linux python -m Shady CalibrationGraphicsShady.py, similarly on these systems if you use it in any code:
python -m Shady whateverCode.py
On Windows, just make sure the World is threaded (argument threaded=True at the instantiation of the World) and simply run python CalibrationGraphicsShady.py
Tested on Mac OS 10.15, Eyelink 1000+ (Eyelink Developpers' Kit 2.1.1), Shady 1.13.0, pylink (SR Research) for python 3.6.13 and on Windows 10 python 3.8.8