Agree with you, no offence but this looks like fancy overkill

I had the same problem. Did you include a return statement? For me, it stemmed from not understanding how the testing is done. I had included a print statement to print the results. When I changed it to a RETURN statement, the error went away. The instructions say to write a program, but really, you're only writing a function and stopping there. Adding more will make the testing setup error out.

same as you

Hi guys!

I'm getting this error "None should equal ['Ryan', 'Mark']", but there's no such strings in my input. As well the test case doesn't contain this. My code works in my terminal and it's 100% correct. What can be the matter? Thanks in advance!