python 3.0 code, released back in 2008, is still compatible with latest released python, with some exceptions like asyncio or obscure file formats which are unlikely to appear in scripts. The pip packages likely did break, but we are talking about python-with-stdlib here.

Granted, it's not 30 years old, but 17 years is pretty impressive. And I don't think there will be another big break, the 2.0->3.0 transition was so painful they'll likely avoid another one for decades.

17 years is very good. I don't have anything against Python, but there's a particular niche that shell/BASH scripts are ideal for. I keep considering writing more stuff in Python, but BASH operates at just the right level for tying systems together (computer duck tape).