I am not denying any other languages have better toolings. But you cannot beat the ecosystem. Every project you interact with, they'd have a Python SDK, but others may not be guaranteed.
And I am thinking more about developing Sass products. There are performance-sensitive bit, but there is also big part of your application that is not.
And I would say most products can be developed in many languages, and they will perform just fine.
So Python's ecosystem saves you time and money to write your own lib because certain things you want to use do not have an SDK in your chosen language.