Chapter 15, Programming a Gamepad on Raspberry Pi with Python

• What is a "static" file?
  • A static file is a file served by a webserver that is not generated or changed, but just delivered as is to the browser. This is perfect for JS, CSS files, or library files.
• What does the path: prefix mean for a section of a Flask route?
  • This can be used to denote that the route section matches a string that may contain slash / separator characters, to put into a variable, like the following example:

...
@app.route('/control/<path:control_name>')
def control(control_name):

...

• What is the unit vw in CSS, and why do we use it?
  • vw is an abbreviation for viewport width. It specifies things as a percentage of viewport width. It is used so things can scale in proportion to size of the screen we are looking at them with.
• How do you get events when a screen is touched...