Sorry, but I'm afraid you are projecting your thinking onto others.
The syntactical constructs are called “string interpolations”, not
“interpolated strings”. I.e. they're interpolations (a certain type of
action) on strings.
Strings are the objects, not the subjects. Strings are data, we have
code/expressions that look like strings with holes, but in reality, only
the parts outside of the braces are strings.
I hope I explained my semantics here adequately. Even if they're internally
post-processed strings in the CPython code: that's an implementation
detail, not a description of the way they work for Python users.
Best, Philipp
Chris Angelico <ros...@gmail.com> schrieb am Di., 30. Aug. 2016, 15:43:
> On Tue, Aug 30, 2016 at 10:56 PM, Philipp A. <flying-sh...@web.de> wrote:
> > My issue is just that it’s as much of a string as a call of a (string
> > returning) function/method or an expression concatenating strings:
> >
> > ''.join(things) # would you call this a string?
> > '{!r}'.format(x) # or this? it’s basically the same as this “f-string”:
> > f'{x!r}'
> > 'start' + 'end' # or this? it’s a concatenation of two strings, just
> like
> > f'start{ "end" }'
>
> Yes, an f-string is really a form of expression, not a literal. But
> prior art has generally been to have similar constructs referred to as
> "interpolated strings" or similar terms:
>
> https://en.wikipedia.org/wiki/String_interpolation
>
> Plenty of languages have some such feature, and it's usually
> considered a type of string. Notice the close parallels between actual
> string literals used as format strings ("I have %d apples" % apples)
> and f-strings (f"I have {apples} apples"), and how this same parallel
> can be seen in many other languages. Yes, it may be a join expression
> to the compiler, but it's a string to the programmer.
>
> ChrisA
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