Because duck-typing. Every number type is equal as long as they have the same numerical value.

oh my world ,this is really pythonic

how so?

sorry to say but i don't think the best clever solution is really the best

although it is not the simplist ,but it very clear

i am curious why python can know 3==3.0 though they type is different ,so t/n acutally also work here

Thanks, although it was rather meant to be a joke ;-)

is it possible that donot return else things just do the else

really short ,really pythonic

i am sorry,but is start from -2?

this is really really short

omg , it 's really hurt when i finally come to a possible but not elegant solution

Overall very poorly written question. I had to re-read everything over and over for complete comprehension. And for the final result to work with all test cases I needed to use round() instead of int(). This is a poor use of time. If something that insignificant is going to pass everything save for one test case, then the round outcome should be explicitly requested.