[EMAIL PROTECTED] schrieb am 13.12.2006 11:02:30: > > Holger Joukl wrote: > > Hi there, > > > > I consider the behaviour of unicode() inconvenient wrt to conversion of > > non-string > > arguments. > > While you can do: > > > > >>> unicode(17.3) > > u'17.3' > > > > you cannot do: > > > > >>> unicode(17.3, 'ISO-8859-1', 'replace') > > Traceback (most recent call last): > > File "<stdin>", line 1, in ? > > TypeError: coercing to Unicode: need string or buffer, float found > > >>> > > [...] > > Any reason why unicode() with a non-string argument should not allow the > > encoding and errors arguments? > > There is reason: encoding is a property of bytes, it is not applicable > to other objects.
Ok, but I still don't see why these arguments shouldn't simply be silently ignored for non-string arguments. > > Or some good solution to work around my problem? > > Do not put undecoded bytes in a mixed-type argument list. A rule of > thumb working with unicode: decode as soon as possible, encode as late > as possible. It's not always that easy when you deal with a tree data structure with the tree elements containing different data types and your user may decide to output root.element.subelement.whateverData. I have the problems in a logging mechanism, and it would vanish if unicode(<non-string>, encoding, errors) would work and just ignore the obsolete arguments. Best regards, Holger Der Inhalt dieser E-Mail ist vertraulich. Falls Sie nicht der angegebene Empfänger sind oder falls diese E-Mail irrtümlich an Sie adressiert wurde, verständigen Sie bitte den Absender sofort und löschen Sie die E-Mail sodann. Das unerlaubte Kopieren sowie die unbefugte Übermittlung sind nicht gestattet. Die Sicherheit von Übermittlungen per E-Mail kann nicht garantiert werden. Falls Sie eine Bestätigung wünschen, fordern Sie bitte den Inhalt der E-Mail als Hardcopy an. The contents of this e-mail are confidential. If you are not the named addressee or if this transmission has been addressed to you in error, please notify the sender immediately and then delete this e-mail. Any unauthorized copying and transmission is forbidden. E-Mail transmission cannot be guaranteed to be secure. If verification is required, please request a hard copy version. -- http://mail.python.org/mailman/listinfo/python-list
