Font Ligatures for your Code Editor and Terminal

The other day I shared my code editor window during a video call with a client, and he immediately did a double take. "How did you make your code look like that?", he wanted to know. Have a look at the following screenshot and see if like my client, anything calls your attention:

If you are wondering what secret keyboard trick allows you to type ≠, ≤, ≥ and other unusual characters, and then how to get Python and other programming languages to accept them then read on, as this is much easier than you think and you can do it too!