python reverse tokens in a string

I have the following string:

apple.开发者_开发问答orange.red.green.yellow

How can i reverse it to get the following:

yellow.green.red.orange.apple

I like this (more readable?) one:

>> s = "yellow.green.red.orange.apple"
>> '.'.join(reversed(s.split('.')))
'apple.orange.red.green.yellow'

'.'.join(s.split('.')[::-1])