[Python-Dev] PEP-393/PEP-3118: unicode format specifiers

[Stefan Krah]

"Martin v. L?wis" <martin at v.loewis.de> wrote:
> > I think it would be nice for Python3.3 to implement the PEP-3118
> > suggestion:
> > 
> > 'c' -> UCS1
> > 
> > 'u' -> UCS2
> > 
> > 'w' -> UCS4
> 
> What is the use case for these format codes?

Unfortunately I've only worked with UTF-8 so far and I'm not too familiar
with UCS2 and UCS4.

*If* the arrays that Victor mentioned give one character per array location,
then memoryview(str) could be used for zero-copy slicing etc.


The main reason why I raised the issue is this: If Python-3.3 is shipped
with 'u' -> UCS4 in the array module and *then* someone figures out that
the above format codes are a great idea, we'd be stuck with yet another
format code incompatibility.


Stefan Krah