push is specified correctly, after that's, it's just a name. "push" is not even the only misname in there. but I don't think any of this is going to be changed now.

Closing.

but you want it to last longer :)

Personally, I believe that the .union(arr2) is incredibly useful here. Wish you nothing but the best. hugs and kisses xox

I feel like the intent of katas like these are to challenge us NOT to rely on built-ins and really think about how to replicate the behavior of the built-in method. shrug

Agree

Please stop arguing guys. All those solutions are bad, yours and mine too. We parse twice the array while it would be so easy with only one pass.

@WloHu list comprehension is an important thing to learn for python newbies. And your solution actualy IS shit

How can you check the speed?

isslice returns a generator, so I think he/she is just trying to avoid creating a whole second array starting at index 1 for zip. Its a small optimization but pretty cool.

lol

It's called python 2