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POCaught TypeError while rendering: unhashable type: 'dict'
 

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  1. POCaught TypeError while rendering: unhashable type: 'dict'
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    <p>I'm trying really hard to work with the book "Practical Django Projects", but this stuff it's not working. You can find my code so far <a href="https://bitbucket.org/ubernostrum/practical-django-projects/src/79e75633cbd4/coltrane/models.py" rel="nofollow">here.</a> (Without the "Link" class. I've just added the get_absolute_url Entry class and all of a sudden I have a "Caught TypeError while rendering: unhashable type: 'dict'" error when trying to get to admin page. <a href="http://img189.imageshack.us/img189/5237/screenieol.jpg" rel="nofollow">Screenie of what I'm talking about.</a> I've never modified anything in that file showed in the error :(. What do i do with this?</p> <p>EDIT: bug occurred after adding this:</p> <pre><code>def get_absolute_url(self): return ('coltrane_entry_detail', (), { 'year': self.pub_date.strftime("%Y"), 'month': self.pub_date.strftime("%b").lower(), 'day': self.pub_date.strftime("%d"), 'slug': self.slug }) get_absolute_url = models.permalink(get_absolute_url) </code></pre> <p>That's from urls.py:</p> <pre><code>urlpatterns = patterns('django.views.generic.date_based', (r'^$', 'archive_index', entry_info_dict, 'coltrane_entry_archive_index'), (r'^(?P&lt;year&gt;\d{4})/$', 'archive_year', entry_info_dict, 'coltrane_entry_archive_year'), (r'^(?P&lt;year&gt;\d{4})/(?P&lt;month&gt;\w{3})/$', 'archive_month', entry_info_dict, 'coltrane_entry_archive_month'), (r'^(?P&lt;year&gt;\d{4})/(?P&lt;month&gt;\w{3})/(?P&lt;day&gt;\d{2})/$', 'archive_day', entry_info_dict, 'coltrane_entry_archive_day'), (r'^(?P&lt;year&gt;\d{4})/(?P&lt;month&gt;\w{3})/(?P&lt;day&gt;\d{2})/?(?P&lt;slug&gt;[-\w]+)/$', 'object_detail', entry_info_dict, 'coltrane_entry_detail'), ) </code></pre>
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