more info about the pattern you use with re

you´re so right ! did not pay attention in this context...

This is what i did

I tried to do this one first but I couldn't but it's great to see someone has same ideas with me :D

Don't forget the identation, it's a good practice and helps a lot to understand your code :)

Very clever solution but That's cheating lol hahaa

Why do you declare ROMAN_NUMERALS and other consts out of class RomanNumerals?

Very elegant solution, especially for from_roman.

We're not asked to handle malformed formulas in this kata.

Beautiful. Will be studying this

Oh, I didn't even realize it thought my comments were cheating...
I just assumed it was a cryptic message I wasn't understanding.

There seems to be something wrong with cheating detection.
I'm basically just stringing two of my old solutions to different problems, and I get the error message

No cheating!
You can't use .com, .com: ['.com', '.com'] should equal []

Beautiful solution! I never thougth to write out regex like this--very intuitive and easy to read. I can learn a lot from this solution.

My first recursion attempt was terribly inefficient.