PEP 308 - ternary operator

[Erik Max Francis]

Nick Trout wrote:

> Has anyone pointed out that your can do ternary operators using:
> 
> result = { 1: true_value, 0: false_value }[condition]
> 
> or
> 
> result = { 1: true_fn, 0: false_fn }[condition]()
> 
> if they are functions.

This doesn't support short-circuiting, which is the key feature of a
true conditional operator.  The PEP itself goes into great detail about
precisely what this feature is and why it's necessary.

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