On 2015-08-10 2:37 PM, Eric V. Smith wrote:
Besides, any expression you have to calculate can go in a local that will get
>interpolated. The same goes for any !r or other formatting modifiers. In an
>i18n context, you want to stick to the simplest possible substitution
>placeholders.
This is why I think PEP-498 isn't the solution for i18n. I'd really like
to be able to say, in a debugging context:
print('a:{self.a} b:{self.b} c:{self.c} d:{self.d}')
without having to create locals to hold these 4 values.
Why can't we restrict expressions in f-strings to
attribute/item getters?
I.e. allow f'{foo.bar.baz}' and f'{self.foo["bar"]}' but
disallow f'{foo.bar(baz=something)}'
Yury
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