I'll take a look at the Sieve problem.
To be clear, the reason I downvoted was because of how fast you decided to clear this issue, for the mere good status of your kata. I will not upvote a response that belittles my problem with the "other people have succeeded with python so you dont matter" argument.

I don't think we should just mark the issue as resolved so fast. Yes, I am using Python. As I saw in the comments, some people also had unlucky unique problems which you have resolved.
My code runs for 8065ms to be precise, and any number input seems to work in Jupyter. And yet I still get this error for some reason...
I read someone say "You get that message when you attempt to run the example tests when there are none.
If there are no tests to run nothing happens and no data is written to STDOUT or STDERR." (https://github.com/Codewars/codewars.com/issues/879)

"Response received but no data was written to STDOUT or STDERR." when I 'Attempt'.
Otherwise my code works, 'Run Sample Tests' takes around 1 second.

Amazing Kata. It made me feel stupid at first for not being able to solve it. But boy am I happy now!

The same issue happened to me. Turns out you need to use the function "enumerate" in your for loop. Here is what helped me in this kata: https://www.codecademy.com/en/forum_questions/5087f2d786a27b02000041a9

Good luck :)