In python, all the random tests were completely made up of capital letters and special characters, while the alphabet was all lower case letters, meaning every single random test just returns itself whether encoding or decoding. Seems a bit pointless!

Tested your code and mine and it passed all tests, also I doubt negative numbers being effected have anything to do with versions upgrades , so closing :-)

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I created a fork to update the description (removing the obsolete Python 2 section again).

I don't think the translator ever announced their Go translation here.

I have forked it to:

• remove the obsolete Python section (was removed before but snuck back in)
• update the Go target version.
• to do more than just 10 simple random tests. Go is fast, so it now has 1000 random tests (100 random alphabets and keys, each used to encode and decode 10 times).

Please approve:

Go translation.

This is, at most, a slight annoyance in the description. It is easy enough to figure out from the rest of the description and the test cases that your solution can't assume that the key length is the same as the text to encode or decode.

Yea, there was some sort of mixup with the relative ranking of this kata when they went and revised a lot of historical rankings way back, as evidenced by the direct sequel having a lower kyu rating: https://www.codewars.com/kata/52d2e2be94d26fc622000735

Oh my God, this is the easiest 4 kata in my life.

Jorgeous and Jaden Smith are twins