For the first time in Tiobe's long-running index, 35-year-old Python has overtaken Java to become the second-most popular programming language. Python, a top choice for data-science and machine ...

The survey found that Python is more popular than Java overall. A total of 52% reported using Python this year, compared to 49% who said they used Java. Last year it was 55% to Java and 54% to Python.

Survey of 15,000 developers and HR managers reveals JavaScript, Java and Python as the most sought-after languages, while knowledge of React, Node.js and .NET Core are also in high demand.