[Python-Dev] casefolding in pathlib (PEP 428)

[Antoine Pitrou]

Le Fri, 12 Apr 2013 08:06:37 -0400,
Devin Jeanpierre <jeanpierreda at gmail.com> a écrit :
> On Fri, Apr 12, 2013 at 4:39 AM, Antoine Pitrou <solipsis at pitrou.net>
> wrote:
> > Ok, I've taken a look at the code. Right now lower() is used for two
> > purposes:
> >
> > 1. comparisons (__eq__ and __ne__)
> > 2. globbing and matching
> >
> > While (1) could be dropped, for (2) I think we want glob("*.py") to
> > find "SETUP.PY" under Windows. Anything else will probably be
> > surprising to users of that platform.
> 
> OT, but, why is .lower() used for case folding in these use-cases
> instead of .casefold()?

Because the code was written before str.casefold() was introduced.
But, actually, if we want to approximate Windows' casefolding behaviour,
str.lower() may be better.

Regards

Antoine.