[Python-ideas] Support Unicode code point notation

[Alexander Belopolsky]

On Thu, Aug 1, 2013 at 9:46 PM, MRAB <python at mrabarnett.plus.com> wrote:

> We could follow Perl or Ruby, or both of them, or even allow braces
> with any of the hex escapes.
>

That choice is unfortunately precluded by backwards compatibility because
both "\u1FFFF" and "\x1FFFF" are valid strings. (Are braces optional in
Perl's \x{..} or Ruby's \u{..}?)

Also, the upper-case U is more in-line with U+ notation and \N escape.  If
we are looking for "one obvious way," I think it should be \U with \x and
\u remaining the other less obvious ways.
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