Well, it does, except that when you do a default_dict.items, it adds
"items" to the dict with a value of 0 in the template. To verify this,
try dumping default_dict after the exception is thrown. You will get a
new key called "items".
To fix your problem, pass dict(default_dict) to the Context.
>>> t.render(Context({'data': dict(default_dict)}))
-- Raja
On Nov 7, 12:51 pm, Hyungyong Kim <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Since a few hours ago, I've suffered following problem.
> I found this problem is due to collections.defaultdict.
>
> Normal dictionary is working collectly, but defaultdict is not
> working.
>
> >>> from django.template import Template, Context
> >>> t = Template("{% for k,v in data.items %}{{ k }}: {{ v }}{% endfor %}")
> >>> normal_dict = {'a':1, 'b':2}
> >>> t.render(Context({'data':normal_dict}))
> u'a: 1b: 2'
>
> >>> from collections import defaultdict
> >>> default_dict = defaultdict(int)
> >>> default_dict[1]+=1
> >>> default_dict[2]+=1
> >>> default_dict[1]+=1
> >>> default_dict
>
> defaultdict(<type 'int'>, {1: 2, 2: 1})>>>
> t.render(Context({'data':default_dict}))
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "/usr/lib/python2.5/site-packages/django/template/__init__.py",
> line 176, in render
> return self.nodelist.render(context)
> File "/usr/lib/python2.5/site-packages/django/template/__init__.py",
> line 768, in render
> bits.append(self.render_node(node, context))
> File "/usr/lib/python2.5/site-packages/django/template/debug.py",
> line 81, in render_node
> raise wrapped
> django.template.TemplateSyntaxError: Caught an exception while
> rendering: 'int' object is not iterable
>
> Original Traceback (most recent call last):
> File "/usr/lib/python2.5/site-packages/django/template/debug.py",
> line 71, in render_node
> result = node.render(context)
> File "/usr/lib/python2.5/site-packages/django/template/
> defaulttags.py", line 122, in render
> values = list(values)
> TypeError: 'int' object is not iterable
>
>
>
> I think defaultdict have to work as normal dict.
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