[Python-Dev] str with base

[Brett Cannon]

On 1/17/06, Guido van Rossum <guido at python.org> wrote:
> On 1/17/06, Bob Ippolito <bob at redivi.com> wrote:
> > There shouldn't be a %B for the same reason there isn't an %O or %D
> > -- they're all just digits, so there's not a need for an uppercase
> > variant.
>
> Right.
>
> > The difference between hex() and oct() and the proposed binary() is
>
> I'd propose bin() to stay in line with the short abbreviated names.
>
> > that hex() and oct() return valid Python expressions in that base.
> > In order for it to make sense, Python would need to grow some syntax.
>
> Fair enough. So let's define it.
>
> > If Python were to have syntax for binary literals, I'd propose a
> > trailing b: "1100b".  It would be convenient at times to represent
> > bit flags, but I'm not sure it's worth the syntax change.
>
> Typically, suffixes are used to indicated *types*: 12L, 12j, and even
> 12e0 in some sense.
>
> The binary type should have a 0b prefix.
>

0b101 for 5?

> Perhaps this could be implemented at the PyCon sprint?
>

Added to the wiki along with possibly hashing out the bytes type.

-Brett