On Jun 16, 2006, at 9:02 AM, Phillip J. Eby wrote: > At 01:29 AM 6/17/2006 +1000, Nick Coghlan wrote: >> Kristján V. Jónsson wrote: >>> A cursory glance at import.c shows that the import mechanism is >>> fairly >>> complicated, and riddled with "char *path" thingies, and manual >>> string >>> arithmetic. Do you have any suggestions on a clean way to >>> unicodify the >>> import mechanism? >> >> Can you install a PEP 302 path hook and importer/loader that can >> handle path >> entries that are Unicode strings? (I think this would end up being >> the >> parallel implementation you were talking about, though) >> >> If the code that traverses sys.path and sys.path_hooks is itself >> unicode-unaware (I don't remember if it is or isn't), then you >> might be able >> to trick it by poking a Unicode-savvy importer directly into the >> path_importer_cache for affected Unicode paths. > > Actually, you would want to put it in sys.path_hooks, and then > instances > would be placed in path_importer_cache automatically. If you are > adding it > to the path_hooks after the fact, you should simply clear the > path_importer_cache. Simply poking stuff into the > path_importer_cache is > not a recommended approach. > > >> One issue is that the package and file names still have to be >> valid Python >> identifiers, which means ASCII. Unicode would be, at best, >> permitted only in >> the path entries. > > If I understand the problem correctly, the issue is that if you > install > Python itself to a Unicode directory, you'll be unable to import > anything > from the standard library. This isn't about module names, it's > about the > places on the path where that stuff goes.
There's a similar issue in that if sys.prefix contains a colon, Python is also busted: http://python.org/sf/1507224 Of course, that's not a Windows issue, but it is everywhere else. The offending code in that case is Modules/getpath.c, which probably also has to change in order to make unicode directories work on Win32 (though I think there may be a separate win32 implementation of getpath). -bob _______________________________________________ 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
