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> But in general Python devs seem to prefer "explicit" ad-hoc syntax for each use case instead of composable "primitives".

I hope you don't consider JS having "composable primitives". To backup my point: there is no anything similar to underscore-like libraries for Python. All is covered by stdlib and syntax.

> for(in) / for(of)

Cough, cough.

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Libraries like underscore are possible because of JS having composable primitives.

JS has many many warts, and the for-loop is a good example of this. And the _.each is a good example how the core JS allows for working around it.

But underscore is literally a bunch of functions taking lambdas. Python also has functions and lambdas. [1] shows it could provide the same interface. I don't get what composable primitives JS has.

[1]: https://pydash.readthedocs.io/en/latest/

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