I went with the if statement but when I went to grab the index I was getting '0'. This is true because once needle is found, needle was all I had to work with. You are close but lose the if statement.

I am new to cpp. Would you like to explain, how the code works.

Mark your post as having spoiler content when it does and use proper markdown
Find how to put a var value in a string in Python (there is more than one way), what you did won't work.

Because you're calling int("").

Issue's are kata-related, If your code is not working correctly, use question tag instead.

Output is showing error:
Traceback (most recent call last):
File "main.py", line 3, in
Test.assert_equals(iq_test("2 4 7 8 10"),3)
File "/home/codewarrior/solution.py", line 9, in iq_test
i = int(i)
ValueError: invalid literal for int() with base 10: ''

But my code works fine in IDE. Why it is showing ValueError?

Issue solved! Thanks!

Probably you're printing the result instead of returning it.

why does the output show: None should equal ['Ryan', 'Mark'], though my code seem to be worked well in IDE.