On Thu, Apr 30, 2009, Cameron Simpson wrote: > > The lengthy discussion mostly revolves around: > > - Glenn points out that strings that came _not_ from listdir, and that are > _not_ well-formed unicode (== "have bare surrogates in them") but that > were intended for use as filenames will conflict with the PEP's scheme - > programs must know that these strings came from outside and must be > translated into the PEP's funny-encoding before use in the os.* > functions. Previous to the PEP they would get used directly and > encode differently after the PEP, thus producing different POSIX > filenames. Breakage. > > - Glenn would like the encoding to use Unicode scalar values only, > using a rare-in-filenames character. > That would avoid the issue with "outside' strings that contain > surrogates. To my mind it just moves the punning from rare illegal > strings to merely uncommon but legal characters. > > - Some parties think it would be better to not return strings from > os.listdir but a subclass of string (or at least a duck-type of > string) that knows where it came from and is also handily > recognisable as not-really-a-string for purposes of deciding > whether is it PEP-funny-encoded by direct inspection.
Assuming people agree that this is an accurate summary, it should be incorporated into the PEP. -- Aahz (a...@pythoncraft.com) <*> http://www.pythoncraft.com/ "If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." --Red Adair _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
