PyScript lets you run Python scripts right in the browser, side by side with JavaScript, with two-way interaction between your code and the web page.

For the operating system to understand that the file should be read as a Python program, the programmer needs to save the file as a Python file, with the ".py" extension.

Interested in learning Python? Jack Wallen takes you through your first steps in building a simple application to take user input and write it to a file.