On Sun, 12 Jan 2014 18:11:47 -0800
Guido van Rossum <gu...@python.org> wrote:
> On Sun, Jan 12, 2014 at 5:27 PM, Ethan Furman <et...@stoneleaf.us> wrote:
> > On 01/12/2014 04:47 PM, Guido van Rossum wrote:
> >> %s seems the trickiest: I think with a bytes argument it should just
> >> insert those bytes (and the padding modifiers should work too), and
> >> for other types it should probably work like %a, so that it works as
> >> expected for numeric values, and with a string argument it will return
> >> the ascii()-variant of its repr(). Examples:
> >>
> >> b'%s' % 42 == b'42'
> >> b'%s' % 'x' == b"'x'" (i.e. the three-byte string containing an 'x'
> >> enclosed in single quotes)
> >
> > I'm not sure about the quotes.  Would anyone ever actually want those in the
> > byte stream?
> 
> Perhaps not, but it's a hint that you should probably think about an
> encoding. It's symmetric with how '%s' % b'x' returns "b'x'". Think of
> it as payback time. :-)

What is the use case for embedding a quoted ASCII-encoded representation
in a byte stream?

Regards

Antoine.


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