[Python-ideas] Briefer string format

[Alexander Belopolsky]

Sorry, I meant to write 'foo'r'\bar' at the end of my previous message.

On Thu, Jul 23, 2015 at 10:08 PM, Alexander Belopolsky <
alexander.belopolsky at gmail.com> wrote:

>
> On Thu, Jul 23, 2015 at 10:22 AM, Steven D'Aprano <steve at pearwood.info>
> wrote:
>
>> I don't think I want this behaviour:
>>
>>     f'{spam}' '{eggs}'
>>     => format(spam) + '{eggs}'
>>
>> for two reasons. Firstly, I already have (at least!) one way of getting
>> that behaviour, such as explicit + concatenation as above.
>>
>> Secondly, it feels that this does the concatenation in the wrong order.
>> Implicit concatenation occurs as early as possible in every other case.
>> But here, we're delaying the concatenation until after the format. So
>> this feels wrong to me.
>>
>> (Again, I'm talking semantics, not implementation. Clever tricks with
>> escaping the brackets don't matter.)
>>
>
> I don't know what you would call "Clever tricks with escaping", but I
> would expect
>
>
>  f'{spam}' '{eggs}'
>  => '{spam}{{eggs}}'.format(**ChainMap(locals(), globals())
>
> just as
>
> 'foo'r'bar'
> => 'foo\\bar'
>
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