Python professionals are paid so much because a lot of technologies of interest to companies are readily designed with Python. I’ll focus on Machine Learning as a quick example.
Machine learning job is an extremely high paid profession and everyone know that python is the go-to language in this field. This is mainly because of the library support and ease of readability compared to other languages.
Machine learning engineering skills are in demand, so it makes sense that a machine learning engineer, who is most likely working in python, will be paid a lot. The choice of language however is not the decisive factor. The language is just a tool to implement the engineering design.
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Also, watch this video to understand more: