Idiomatic Python for incrementing pairs

[Carlos Nepomuceno]

alpha, beta = (1 if some_calculation(params) else 0, 1 if other_calculation(params) else 0)

> Date: Fri, 7 Jun 2013 21:32:39 -0500
> From: python.list at tim.thechases.com
> To: python-list at python.org
> Subject: Idiomatic Python for incrementing pairs
> 
> Playing around, I've been trying to figure out the most pythonic way
> of incrementing multiple values based on the return of a function.
> Something like
> 
>   def calculate(params):
>     a = b = 0
>     if some_calculation(params):
>       a += 1
>     if other_calculation(params):
>       b += 1
>     return (a, b)
> 
>   alpha = beta = 0
>   temp_a, temp_b = calculate(...)
>   alpha += temp_a
>   beta += temp_b
> 
> Is there a better way to do this without holding each temporary
> result before using it to increment?
> 
> -tkc
> 
> 
> -- 
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