Well the answer is in your question.
b stands for binary. You can get octal or hexa by using o or x.
Look up python string formating.

What the b stands for? How it can represent the binnary?

You make my code look like a dang book. Didn't know it was this simple, nice job!

Yeah, I think I can maybe be a little more liberal with my one-liners.

I use them so long as they are easily understandable (like this one)

Nice one liner. Just currious, do people use if statements like this in production? Thanks!