Op 6/06/2023 om 16:08 schreef Chris Angelico:
On Wed, 7 Jun 2023 at 00:06, Neal Becker <ndbeck...@gmail.com> wrote:
>
> The following f-string does not parse and gives syntax error on 3.11.3:
>
> f'thruput/{"user" if opt.return else "cell"} vs. elevation\n'
>
> However this expression, which is similar does parse correctly:
>
> f'thruput/{"user" if True else "cell"} vs. elevation\n'
>
> I don't see any workaround. Parenthesizing doesn't help:
> f'thruput/{"user" if (opt.return) else "cell"} vs. elevation\n'
>
> also gives a syntax error
Is this a problem with the f-string, or with the expression
opt.return? That's a keyword.
'return' being a keyowrd is definitely going to be the problem.
Neal, I assume you're using 'opt.return' also outside of that f-string.
Does that work? How did you manage to do that? I tried to make a simple
class with an attribute called 'return', but that already fails with a
syntax error.
(Recently there has been an effort to provide clearer and more useful
error messages; this seems to be a case where there is still room for
improvement: "SyntaxError: invalid syntax" doesn't immediately remind me
of that fact that 'return' is a keyword and therefor can't be used as an
attribute.)
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