[Python-ideas] PEP 505 (None coalescing operators) thoughts

[Chris Meyer]

> On Sep 28, 2015, at 9:40 AM, Donald Stufft <donald at stufft.io> wrote:
> 
> could use two words!
> 
> result = spam or else eggs

Could use otherwise:

result = spam otherwise eggs

> On September 28, 2015 at 12:38:21 PM, Steven D'Aprano (steve at pearwood.info) wrote:
>> On Mon, Sep 28, 2015 at 06:11:45PM +0200, Sven R. Kunze wrote:
>> 
>>> That sums it all up for me as well, though I would rather use "else"
>>> instead of "or?" (see punctuation-heavy).
>> 
>> `else` is ambiguous. Consider:
>> 
>> result = spam if eggs else cheese else aardvark
>> 
>> could be interpreted three ways:
>> 
>> result = (spam if eggs else cheese) else aardvark
>> result = spam if (eggs else cheese) else aardvark
>> result = spam if eggs else (cheese else aardvark)
>> 
>> Whichever precedence you pick, some people will get it wrong and it will
>> silently do the wrong thing and lead to hard-to-diagnose bugs. Using
>> "else" for this will be a bug-magnet.
>> 
>> 
>> 
>> --
>> Steve
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> 
> -----------------
> Donald Stufft
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> 
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