default behavior

[Duncan Booth]

Peter Otten <__peter__ at web.de> wrote:

>>>> from collections import defaultdict
>>>> d = defaultdict(1 .conjugate)
>>>> d["x"] += 2
>>>> d["x"]
> 3
> 
> Isn't that beautiful? Almost like home;)
> 
> It is also fast:
> 
> $ python -m timeit -s"one = lambda: 1" "one()"
> 1000000 loops, best of 3: 0.213 usec per loop
> $ python -m timeit -s"one = 1 .conjugate" "one()"
> 10000000 loops, best of 3: 0.0972 usec per loop
> 
> Micro-optimisation, the best excuse for ugly code...
> 

Nice one, but if you are going to micro-optimise why not save a few 
keystrokes while you're at it and use '1 .real' instead?

-- 
Duncan Booth http://kupuguy.blogspot.com