[Python-Dev] New Py_UNICODE doc

[M.-A. Lemburg]

Fredrik Lundh wrote:
> Thomas Heller wrote:
> 
> 
>>AFAIK, you can configure Python to use 16-bits or 32-bits Unicode chars,
>>independend from the size of wchar_t.  The HAVE_USABLE_WCHAR_T macro
>>can be used by extension writers to determine if Py_UNICODE is the same as
>>wchar_t.
> 
> 
> note that "usable" is more than just "same size"; it also implies that widechar
> predicates (iswalnum etc) works properly with Unicode characters, under all
> locales.

Only if you intend to use --with-wctypes; a configure option which
will go away soon (for exactly the reason you are referring to: the
widechar predicates don't work properly under all locales).

-- 
Marc-Andre Lemburg
eGenix.com

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