The Python version simply did not have the same example code that the JS and CoffeeScript ones did, because I did those as language-specific, so I had to explicitly add it later. It has been modified to reflect this.

Which solution is "much better" depends on the purpose of reversing the list.

If you're done with the old list, this method is probably better as it doesn't leave the old list in memory. The kata instructions weren't clear about whether the old one needed to be preserved, so either approach should be fine.