Le dimanche 11 décembre 2011 à 23:44 +0100, "Martin v. Löwis" a écrit : > Am 09.12.2011 20:32, schrieb Antoine Pitrou: > > On Fri, 09 Dec 2011 19:51:14 +0100 > > Victor Stinner <victor.stin...@haypocalc.com> wrote: > >> On 09/12/2011 01:35, Antoine Pitrou wrote: > >>> On Fri, 09 Dec 2011 00:16:02 +0100 > >>> victor.stinner<python-check...@python.org> wrote: > >>>> > >>>> +.. c:function:: PyObject* PyUnicode_Copy(PyObject *unicode) > >>>> + > >>>> + Get a new copy of a Unicode object. > >>>> + > >>>> + .. versionadded:: 3.3 > >>> > >>> I'm not sure I understand. Why would you make a copy of an immutable > >>> object? > >> > >> PyUnicode_Copy() can be used to modify a string to create a new string > >> with the same length. It is used for example by str.upper(), > >> str.title(), ... (fixup()). > > > > Then the doc should mention that the returned string can be modified. > > Otherwise it's a bit obscure why the function exists. > > I'm skeptical about this modification part. If you make a copy, it's > not clear at all that the new characters that you put in will fit > in range with the width of the unicode string. Even decreasing the > ordinal of a character may be incorrect as the result may not be > canonical anymore.
Ah, good point. And perhaps a good reason to make the API private. Regards Antoine. _______________________________________________ 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
