And why is that?

This is sub-optimal. By using "|", the code must evaluate both n % x and n % y, whereas just using "||" will save needing to calcuate the 2nd expression if the first is true.

same

I guess it pays to be familiar with all the functions and methods python makes available. Which is why I am doing these exercises - to learn. And, failure is such a good teacher.

I agree, the tests aren't aligned with the instructions so this passes when it should not. There is no check if a or b are numbers as outlined in the requirements

Could you explain how it works?

very clever. I forgot the only integers in binaries are 0 and 1.

it is not lol))

Easy to read

The whole point here is that it's not a list comprehension.

If it were a list comprehension, then the whole list would be built, and all would be called on it afterwards. But it's a generator comprehension, which produces elements lazily, one by one, as they are iterated over.

It doesn't pass, so this solution isn't correct

this should not work - as passing a non number into variable b will yield NaN ?