This is sad to see, but necessary at some point, as others have said. We should all thank him for his contributions, and for the advances in data science experiments enabled by Python's ease of use, good design, and advanced features.
I am glad that Python is recognized as the quality language it is.
Perhaps it's synchronicity that in other news this week Elon Musk triple hearted Python, https://twitter.com/elonmusk/status/1016002749446516737.