I mean by useless is it's so slow you can't make games or even big projects for GUI, only you can do is AI/ML, Data Science, and basic stuff. I think Rust is better because of its speed and language capabilities?
That's not what I'm talking about. Things like "numpy" which are actually written with a fair amount of C for performance. Or pandas which uses Cython to trans-pile Python to C to compile.
It's not "pure python".