I'm not sure comparing C# to Python makes sense. a) Microsoft is in an excellent position to make such changes, unlike Python, because Microsoft shops

I'm not sure comparing C# to Python makes sense. a) Microsoft is in an excellent position to make such changes, unlike Python, because Microsoft shops will largely do whatever Microsoft tells them. Just have a look at how often they have incompatibly changed the standard library used by C#. b) Not every language has to botch the transition as badly as Python designers did.