Unpopular Opinion: CPython is stupidly slow. CPython is the Python you’re using if you don’t know which Python you use.
Before Go, Python had taken a firm hold of the systems admin coding, and huge amounts of Linux tooling is written in Python.
During the Great Python 3 Migration of 2019, Python libraries bloated with people introducing bidirectional compatibility, generally by just grabbing some 3rd-party libraries to minimize the footprint of change.
Today’s Linux admin activities are agonizingly slow because so many Python developers hear adages about not optimizing Python code they think that you never need to worry about it, so they have no idea how expensive some very common practices are.
Sadly, CPython makes no-need-for-performance-thinking untrue in one really unfortunate detail, one detail that has been agonizingly inflated by the bloat of compatibility code:
Function call overhead :(
If you want to interact with it (run it for yourself), you can either use an online notebook viewer (e.g https://nbviewer.jupyter.org/), or Visual Studio Code has really nice support for notebooks, now.
The golang example is here.