Improve "ray" import check so it works on Colab #866
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danieljanes
approved these changes
Oct 11, 2021
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Fixes a bug where ray is not found although its installed. The new approach uses
importlib.util.find_specwhich searches at multiple locations and works also on Colab: https://docs.python.org/3.8/library/importlib.html?highlight=pkg_resources#importlib.util.find_spec