Same. Never before have I seen it used or even heard of it. Immediately down the rabbit hole!

Never have I looked at more library documentation than when looking at your solutions. Thanks for making me get out of my comfort zone!

That would be a big fat no. Please leave me alone in my shame. 😆

Thank you, I will definitely do that.

Thank you both very much. Though I have ranked up to 3 kyu I am very weak on Classes and am forcing myself through all Classes tagged Kata right now.

Calling the function through lambda: now matches my Sample Test output with the Test Cases output.

In the Test Cases: the below names all fail with "Expected an error"

names = ['myClass', 'newClass', 'My Class', 'MyClass!', ' MyClass', '2ndMyClass!', '2ndMyClass']

I run the same names list through on my Sample Tests and they all pass. No code was changed on my Solution. I am raising a ValueError on the conditions outlines in the Kata description.

I expect it to pass. It is failing. I then copied the failed tests from Test Cases to my samples, where they then pass.

I pulled the test.expect_error from a different Kata that expected exceptions. I haven't seen any documentation on the testing class.

Disregard the last reply. Not enough coffee yet.

My function is working as demanded by the Kata description and Sample Tests, but is failing in Test Cases.

I printed the inputs that are generating failed tests and added them to my Sample Tests.

The failed inputs from the Test Cases pass when run on Sample Cases from the first attempt, but continue not working on Test Cases. There seems to be an error in the test.expect_error section of the Test Cases.

Python test cases are broken. To debug I pulled the test class names from the test cases, ran them through on my sample tests, and all passed first shot.