There's been an upset in the Octoverse, as Python has unseated JavaScript as the most-used programming language on GitHub.… Python's ascendancy from the number-two slot, which it's held since ...

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.