The technical pressure exerted on Python (which was resisted) is one thing. The social pressure incubated the most radical culture warriors the Internet has ever seen and its proponents have ruined the Python organization, driven away many people and have established a totalitarian and oppressive regime.
Interestingly, Google has fired the Python team this year. The revolution eats its own?
Anyway, Rust should take note and be extremely careful.
Based on what an ex-Google developer said in conversation at a party at the weekend (the discussion was about the choice of First Language for a Computer Science degree course, yes, I do go to exciting parties, many of those attending have never even been a CS lecturer):
Some years ago Google decided that Go projects were similar engineering effort, better performance, lower maintenance, and so on that basis there was no reason to authorise new Python software and their existing projects would migrate as-and-when.