Python 3, Admin Autocomplete: object has no attribute '__unicode__'

[raratiru]

Hallo, trying to implement Admin Autocomplete in a Python 3.3 environment and I get the following error:

Request Method:     GET
Request URL:    http://127.0.0.1:8000/admin/auto/tst/foreignkey_autocomplete/?search_fields=location_en%2Clocation_el&app_label=earth&model_name=location&q=achar
Django Version:     1.6.2
Exception Type:     AttributeError
Exception Value:    

'Location' object has no attribute '__unicode__'

Exception Location:     /home/flyer/.virtualenvs/noze/lib/python3.3/site-packages/django_extensions/admin/__init__.py in <lambda>, line 88
Python Executable:  /home/flyer/.virtualenvs/noze/bin/python
Python Version:     3.3.2 

My Model is the following:

class Location (models.Model):
    municipality_key = models.ForeignKey(
        Municipality,
        verbose_name=_('Municipality'),
        )
    location = models.CharField(
        max_length=127,
        verbose_name=_('Location'),
        )

    def __str__(self):
        return '{0}: {1}'.format(self.municipality_key, self.location)

    class Meta(object):
        verbose_name = _('Location')
        verbose_name_plural = _('Locations')

When I replace def __str__(self): with def __unicode__(self): everything works as expected.

[mounirmesselmeni]

You can make your code run into Python2 and Python3 and fixing this error by using the python_2_unicode_compatible decorator in your model.

from django.utils.encoding import python_2_unicode_compatible

@python_2_unicode_compatible
class Location (models.Model):
    municipality_key = models.ForeignKey(
        Municipality,
        verbose_name=_('Municipality'),
        )
    location = models.CharField(
        max_length=127,
        verbose_name=_('Location'),
        )

    def __str__(self):
        return '{0}: {1}'.format(self.municipality_key, self.location)

    class Meta(object):
        verbose_name = _('Location')
        verbose_name_plural = _('Locations')

[trbs]

Thanks @mounirmesselmeni !
@raratiru I hope this answers your question.

commited b32ffe9 as well.

[raratiru]

Thank you, this is great news!