Tech giants with millions of lines of Python code, such as Instagram and Dropbox, have been upgrading code to Python 3.x over the past years due to Python 2.x's looming end of life.

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.