A curious bit of code...

[Ned Batchelder]

On 2/13/14 9:45 PM, forman.simon at gmail.com wrote:
> For the record I wasn't worried about the performance.  ;-)
>
> It was for Tkinter event strings not markup tags.
>
> I'm glad this was the time winner!
>
> "key and key[0] == '<' and key[-1] == '>'"
>
>
> Cheers to the folks who did the timings (and saved me from the trouble!)
>
> Last but not least...  s[::len(s)-1]   omg!!?   ;-D
>

If you aren't worried about performance, why are you choosing your code 
based on which is the fastest?  There are other characteristics 
(clarity, flexibility, robustness, ...) that could be more useful.

-- 
Ned Batchelder, http://nedbatchelder.com