For many coding students, HTML, CSS, Python, Java, JavaScript, C and Ruby are among the easiest programming languages to learn.

Codecademy, a venture-backed company, offers free online training for tech workers. Since it opened in 2011, more than 25 million people have taken those courses, according to CEO Zach Sims ...

Python code is enclosed in the script tag with a type="py" attribute. Note that the code should be formatted according to Python’s conventions for indentation, or it won’t run properly.