On Fri, May 16, 2014, Victor Stinner <victor.stin...@enovance.com> wrote: > See my documentation: > https://wiki.openstack.org/wiki/Python3#logging_module_and_format_exceptions > > " six.text_type(exc): always use Unicode. It may raise unicode error > depending > on the exception, be careful. Example of such error in python 2: > unicode(Exception("nonascii:\xe9")). " > > unicode(exc) works with such exception classes: > --- > class MyException1(Exception): > pass > > exc = MyException1() > exc.message = u"\u20ac" > unicode(exc) #ok > > class MyException2(Exception): > def __unicode__(self): > return u"\20ac" > > exc = MyException2() > unicode(exc) #ok > --- > > If we want to format an exception as Unicode, we need a function trying > unicode(), or use str() and then guess the encoding. It means adding a new > safe function to Olso to format an exception.
This is unnecessarily complicated. Strings should be decoded to unicode as soon as possible. When a request is read from a user, it should be decoded to a unicode type. When it's read from a file, it should be decoded to a unicode type. Nothing should be stored internally as an encoded string. If a third party library raises exceptions with strings in an encoding other than ASCII, they should be shot :) JE _______________________________________________ OpenStack-dev mailing list OpenStackfirstname.lastname@example.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev