Re: Ternary operator associativity

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Date	Thu, 6 Mar 2014 12:59:58 -0600
From	Tim Chase <python.list@tim.thechases.com>
To	python-list@python.org
Subject	Re: Ternary operator associativity
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On 2014-03-06 03:34, candide wrote:
> According to the official documentation, the ternary operator has
> left-to-right associativity 
>
> >>> left_to_right = (0 if 1 else 0) if 0 else 1
> >>> right_to_left = 0 if 1 else (0 if 0 else 1)

I'd never want to rely on my own ability to remember the language
spec, so I strongly advocate for making it explicit with parens
regardless of what the language defines.  And that's if I ever created
such a mess in the first place.  If you have more than one pair of
conditional expressions in a single assignment, I'd suggest that it's
a code-smell that could use refactoring for clarity/disambiguity.

-tkc

Thread

Ternary operator associativity candide <c.candide@laposte.net> - 2014-03-06 03:34 -0800
  Re: Ternary operator associativity Michael Torrie <torriem@gmail.com> - 2014-03-06 10:47 -0700
  Re: Ternary operator associativity Terry Reedy <tjreedy@udel.edu> - 2014-03-06 13:52 -0500
  Re: Ternary operator associativity Tim Chase <python.list@tim.thechases.com> - 2014-03-06 12:59 -0600
  Re: Ternary operator associativity Terry Reedy <tjreedy@udel.edu> - 2014-03-06 15:15 -0500

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