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Django got an unexpected keyword argument

I’m trying to create an archive so I pass to the view the arguments year and month.

However, I get an error with the code below and I can’t figure out what it means and how to solve it:

Exception Type: TypeError
Exception Value:    archive() got an unexpected keyword argument 'year_id'
Exception Location: /usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py in get_response, line 115

What can be wrong?

views.py

    # loop over years and months
def mkmonth_lst():
    if not Post.objects.count():
        return []
    # set up vars
    year, month = time.localtime()[:2]
    first = Post.objects.order_by("created")[0]
    fyear = first.created.year
    fmonth = first.created.month
    months = []

    # loop over years and months
    for y in range(year, fyear-1, -1):
        start, end = 12, 0
        if y == year: start = month
        if y == fyear: end = fmonth-1

        for m in range(start, end, -1):
            months.append((y, m, month_name[m]))

    return months

def archive(request, year, month):
    posts = Post.objects.filter(created__year=year, created__month=month)
    context = {'PostList': posts, 'Months': mkmonth_lst()}

    return(render, 'archives.html', context)

urls.py

url(r'^archives/(?P<year_id>d+)/(?P<month_id>d+)$', views.archive, name='archives'),

Update:

models.py

class Post(models.Model):
    title = models.CharField(max_length=100)
    body = models.TextField()
    created = models.DateTimeField(auto_now_add=True)
    url = models.URLField(null=True, blank=True)
    video = models.FileField(upload_to = 'video', verbose_name = 'Video', null=True, blank=True)
    picture = models.ImageField(upload_to = 'post', verbose_name = 'Picture')
    tags = TaggableManager()

    def __unicode__(self):
        return self.title

Template

<h3>Archivo</h3>
  <p>
    {% for month in months %}
        {% ifchanged month.0 %} {{ month.0 }} <br /> {% endifchanged %}
            <a href="/blog/archives/{{month.0}}/{{month.1}}">{{ month.2 }}</a> <br />
    {% endfor %}
  </p>

Update 2: error

usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py in get_response
            response = middleware_method(request, response) ...
/usr/local/lib/python2.7/dist-packages/django/middleware/common.py in process_response
    if response.status_code == 404: ...


Request Method: GET
Request URL:    http://127.0.0.1:8000/blog/archives/2014/1
Django Version: 1.5
Exception Type: AttributeError
Exception Value:    
'tuple' object has no attribute 'status_code'
Exception Location: /usr/local/lib/python2.7/dist-packages/django/middleware/common.py   in process_response, line 106
Python Executable:  /usr/bin/python
Python Version: 2.7.3
Python Path:    
['/home/fernando/develop/blogmanage',
'/usr/local/lib/python2.7/dist-packages/django_mptt-0.6.0-py2.7.egg',
'/usr/local/lib/python2.7/dist-packages',
'/usr/lib/python2.7',
'/usr/lib/python2.7/plat-linux2',
'/usr/lib/python2.7/lib-tk',
'/usr/lib/python2.7/lib-old',
'/usr/lib/python2.7/lib-dynload',
'/usr/local/lib/python2.7/dist-packages',
'/usr/lib/python2.7/dist-packages',
'/usr/lib/python2.7/dist-packages/PIL',
'/usr/lib/python2.7/dist-packages/gst-0.10',
'/usr/lib/python2.7/dist-packages/gtk-2.0',
'/usr/lib/pymodules/python2.7',
'/usr/lib/python2.7/dist-packages/ubuntu-sso-client',
'/usr/lib/python2.7/dist-packages/ubuntuone-client',
'/usr/lib/python2.7/dist-packages/ubuntuone-control-panel',
'/usr/lib/python2.7/dist-packages/ubuntuone-couch',
'/usr/lib/python2.7/dist-packages/ubuntuone-installer',
'/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol']
Server time:    Wed, 29 Jan 2014 21:09:56 +0100

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Answer

There is something wrong with your parameters names :

 def archive(request, year, month):

Replace year and month by year_id and month_id and it should work.

EDIT:

For your second error, and accordingly to this question, your archive() view does not return a proper response.

Here is your code, fixed :

from django.shortcuts import render_to_response

def archive(request, year_id, month_id):
    posts = Post.objects.filter(created__year=year_id, created__month=month_id)
    context = {'PostList': posts, 'Months': mkmonth_lst()}

    # the error was here
    return render_to_response('archives.html', context)

Edit 2 :

Your template can’t iterate through months because the var does not exist in context:

context = {'PostList': posts, 'Months': mkmonth_lst()} # Not correct
context = {'postList': posts, 'months': mkmonth_lst()} # Correct

Do you see the difference ? You use caps for your variables names (“Months”) in the first one, while the template rendered, which is case-sensitive, looks for a lower case variable (“months”).

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