Explain the output

Question

Hello dear SoloLearners! I have been playing challenges and I found this quiz

print(['abc', 'def'][bool('spam')])

The output is def

I understand that True = 1, so list[1] = def

But why bool('spam') = True? I don't understand. Please explain!

Answer 1

A string evaluates as True if it is not empty.

So '' is False, but for example '0' or ' ' is True.

Answer 2

Thanks HonFu ! You really helped me!