[Python-ideas] String interpolation for all literal strings

[Nikolaus Rath]

On Aug 07 2015, Barry Warsaw <barry-+ZN9ApsXKcEdnm+yROfE0A at public.gmane.org> wrote:
> * Literals only
>
> I've described elsewhere that accepting non-literals is useful in some
> cases.

Are you saying you don't want f-strings, but you want something that
looks like a function (but is actually a special form because it has
access to the local context)? E.g. f(other_fn()) would perform literal
interpolation on the result of other_fn()?

I think that would be a very bad idea. It introduces something that
looks like a function but isn't and it opens the door to a new class of
injection vulnerabilities (every time you return a string it could
potentially be used for interpolation at some point).

Best,
-Nikolaus

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