[Python-ideas] PEP 501 - i18n with marked strings

[M.-A. Lemburg]

On 10.08.2015 22:31, Mike Miller wrote:
> Hi,
> 
> I haven't done i18n recently, so bare with me.  I'm not sure about bolting this on to "format
> strings", in that it feels like an orthogonal concept.
> 
> However, what if we had i18n strings as well, not instead of:
> 
>     i'Hello there, $name {age}.'
> 
> and that they were complimentary to f'', each handling their different duties:
> 
>     fi'Hello there, $name {age}.'
> 
> Different syntax would probably be needed for each, is that correct?  Since each have different
> requirements, e.g. Barry's concerns about format strings being too powerful for non-developers,
> while also making a project vulnerable to arbitrary code.
> 
> Perhaps PEP 498 with non-arbitrary strings (but attribute/keys support) would allow the syntax to be
> unified.

IMO, having just one string literal interpolation standard is better
than having two and since i"" fits both needs, I'm +1 on i"" and
-0 on f"".

The only problem I see with i"" is that you may want to use
formatting only in some cases, without triggering the translation
machinery which may be active in a module. I guess it's fine to
fallback to the standard .format() or %-approach for those
few situations, though.

In all other use cases, having the literal strings already
prepared for translation in a Python module is a huge win:
just drop a translation hook into the module and you're
good to go :-)

-- 
Marc-Andre Lemburg
eGenix.com

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