Tests have been updated

The current set of methods does not teach solvers a best practice.

It is also not understandable, why you ask to implement hash method, if you don't use it as designed (i.e. testing sets of IpAddress, using IpAddress as key of dict, etc.)

Not sure that copying every single bit from standard library will be helpful

Yeah, it all makes sense. @Voile apologies for being overly defensive. Shouldn't have been answering to the comments in the middle of the night.

ipaddress also has __format__, and also allows adding/subtracting integers from them, and also has a ton of other functionalities, so...

There should be enforced methods __int__, __bytes__.

There should not be method from_string, rather the class should accept various types in __new__, like here https://docs.python.org/3/library/ipaddress.html

the true question here is: is that very difficult to generate random tests for your kata (edit: or a limited set of possible inputs)? As long as the answer is no, the random tests are mandatory.

Not even trying to convince. Just pointing out that the rule that not enforced autotaically and has exceptions can not be mandatory.

"Under some rare circumstances, it is allowed to use so-called randomized tests instead of fully random ones."

Please explain what makes you kata so special you can just ignore the standard practice for every kata. Note that this has been done only for several katas out of thousands of katas, and it's usually due to severe technical limitations, not "I believe my kata is so simple/elegant random test cases aren't necessary". You're not gonna convince everyone around (include me) with that here.

Thanks for the implementation. I see how tests should be updated to handle the 'hash' cases properly

it is not mandated for every kata, see "Under some rare circumstances, it is allowed to use so-called randomized tests instead of fully random ones."

Terminology is quite weak in this section of documentation. I doubt that it is expected to have truly random tests instead of tests with randomised testing values.

I will update the tests, making the basic ones (visible to user) with only fixed inputs. And extended version with randomised inputs, duplicating existing ones. Even though the solution passing all the already provided tests will be laborious enough to be seen as actually showing the skillset reauired to solve this kata normally.

It is mandated by every kata: see https://docs.codewars.com/authoring/guidelines/submission-tests#random-tests

1. What do you mean by that?
2. What it will help to achieve?

There should be random tests.

woah... decorators are cool... i should be using them more. Thanks for showing me they exist