Fixed.

aw i reset my kata and it is working now

hmmm... how can I get it to submit then? I tried in chrome and firefox and get the same error.

I've just copy/pasted your code in the trainer, but that isn't returning any error.

getting same error if I return float(s[0]) or long(s[0]) or int(s[0])

You're supposed to return number, right now you're return a string.

yes i have that

You've to write the function evaluate as a method inside the class Calculator, the code is still incomplete.

I am a bit confused. I have it inside the function evalute when I submit it (edited code above to reflect my exact submission for some reason the class Calculator isn't showing but it there). Am I supossed to return a function?

You're supposed to write a function, and there aren't any in your code.

It is impossible to read the code without markdown formatting.

I guess you used print.
I also forget to change it to return at times.

i know its a cheap way to solve the kata but fraction will most certainly solve this

Okay, but if you gonna timeout then don't raise that as an issue.