The appeal is the libraries, like numpy, scipy,matplotlib tensorflow, qiskit the quality and the ease to use them. Basically python became what TCL dreamt of becoming (ok, don't kill me).
Oooo, neat! Thanks for pointing this out, I'll have to look into it. Many of my struggles have also revolved around the ecosystem (pulling in and/or keeping up to date with modules that other teams have written, etc.) so I'm especially interested to see how this deals with that.
There's also Hy (https://github.com/hylang/hy) if you just want Python with Clojure-ish syntax. At the very least it frees you from indentation and single-expression lambda restrictions.