Yeah, I think Nick meant that as a way of implementing the "formatting mini-language" for bytes, given that bytes don't have __format__ or format. But using %(name)s for the *syntax* in bytes was never on the table. I think we're better off not supporting this type of string interpolation for bytes at all.

On Thu, Aug 20, 2015 at 7:39 PM, Mike Miller <python-ideas@mgmiller.net> wrote:

Ok, not exactly it was this one, that I may have misunderstood:

https://mail.python.org/pipermail/python-ideas/2015-August/035347.html

On 08/20/2015 05:57 PM, Mike Miller wrote:

I found the b'' idea on a recent message here between you and Nick I think, it
seemed interesting. It's gone now, as well as the typo, thanks MRAB.

--Guido van Rossum (python.org/~guido)