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Fixed #19211 -- Adapted tutorial for Python 3

This commit is contained in:
Claude Paroz 2013-04-22 19:50:17 +02:00
parent 226b733c26
commit 7cc3acbb70

View File

@ -578,27 +578,33 @@ Wait a minute. ``<Poll: Poll object>`` is, utterly, an unhelpful representation
of this object. Let's fix that by editing the polls model (in the
``polls/models.py`` file) and adding a
:meth:`~django.db.models.Model.__unicode__` method to both ``Poll`` and
``Choice``::
``Choice``. On Python 3, simply replace ``__unicode__`` by ``__str__`` in the
following example::
class Poll(models.Model):
# ...
def __unicode__(self):
def __unicode__(self): # Python 3: def __str__(self):
return self.question
class Choice(models.Model):
# ...
def __unicode__(self):
def __unicode__(self): # Python 3: def __str__(self):
return self.choice_text
It's important to add :meth:`~django.db.models.Model.__unicode__` methods to
your models, not only for your own sanity when dealing with the interactive
prompt, but also because objects' representations are used throughout Django's
automatically-generated admin.
It's important to add :meth:`~django.db.models.Model.__unicode__` methods (or
:meth:`~django.db.models.Model.__str__` on Python 3) to your models, not only
for your own sanity when dealing with the interactive prompt, but also because
objects' representations are used throughout Django's automatically-generated
admin.
.. admonition:: Why :meth:`~django.db.models.Model.__unicode__` and not
.. admonition:: :meth:`~django.db.models.Model.__unicode__` or
:meth:`~django.db.models.Model.__str__`?
If you're familiar with Python, you might be in the habit of adding
On Python 3, things are simpler, just use
:meth:`~django.db.models.Model.__str__` and forget about
:meth:`~django.db.models.Model.__unicode__`.
If you're familiar with Python 2, you might be in the habit of adding
:meth:`~django.db.models.Model.__str__` methods to your classes, not
:meth:`~django.db.models.Model.__unicode__` methods. We use
:meth:`~django.db.models.Model.__unicode__` here because Django models deal