Search code examples
loopsif-statementwhile-looprangeis-empty

how can you explain me this?

It gives me an empty list if I didnt put x=list(range(a, b, -1)) again in the loop while, why ?

Image

Thanks.

Solution

  • If a < b then the range will be created as an empty range. The range won't magically update when a and b gain new values because the values have already been assigned to the range. That's why you have to recreate the range with the updated values of a and b.