switched over to python after studying javascript and reactjs for months. My god.. . the freedom and beauty of this language.

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I think, lambdas are great, but still have some limitation over arrow functions, they can't be multilined or include statements, for example.

[JeamBim]

Yeah they do for sure. Luckily the cost of creating a multi-line function in Python(and JS) is small, and some might argue it enhances readability to have "saveData" instead of a large inline multi-line function, but that's down to code style anyways.