There is a null in one of the arrays in the test. You have to handle it.

             v
'found the neddle at position 30' should equal 
'found the needle at position 30'
             ^

No, they're not. Try putting the two strings like this when debugging your code, the difference becomes evident.

Hi @Murathancakir and welcome to Codewars!

I tried debugging your solution, because the code looked OK to me - it turns out it's a spelling rather than a programming mistake!

Currently you have: 'neddle' but the correct spelling is 'needle' with 2 e's. Now your code should work.

'found the neddle at position 30' should equal 'found the needle at position 30'
I dont know what is the problem they seems same to me

Not a kata issue, the function's name should be find_needle not findNeedle as you have.

Sir please import find_needle in the unit test file. Due to this I am not able to run the tests and attempt my solution.

Hi @austang and welcome to Codewars! Currently you are returning a tuple made up of 2 components: the first is the string 'found the needle at the position' and the 2nd component is the integer 3.

You need to find a way to return one big string: 'found the needle at position 3'.

If you are new to Python, you can join the Codewars Discord - link in sidebar on the left - there is a beginners channel where people can help you get started with the site.

('found the needle at the position', 3) should equal 'found the needle at position 3'

That is my error and I dont know what to do in order to fix it. Any help?

Please read this: https://docs.codewars.com/training/troubleshooting