On Sat, 29 Apr 2023 at 00:52, MRAB <pyt...@mrabarnett.plus.com> wrote:
>
> What happens if you do '{open}...{close}'.partial_format(open='{close}'?
> You get '{close}...{close}', and you're going to have a problem using
> that as a format string and replacing only the second '{close}'.
>
> Or how about '{open}...{close}'.partial_format(open='{')? You get
> '{...{close}'. Try using that as a format string!
>
> That's why I think that the result of a partial format should be an
> instance of a new class and not a string.
That's a quite subtle point. I think
'{open}...{close}'.partial_format(open='{close}') could be the string
'{open}...{close}'.format(open='{{close}}', close='{close}')
and '{open}...{close}'.partial_format(open='{') could be
'{open}...{close}'.format(open='{{', close='{close}')
Best regards,
Takuo Matsuoka
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