Django 1.6: name 'sitemaps' is not defined

问题

I'm trying to implement sitemaps in my django application but i get the following error. I'm using the django sitemap's framework. I don't know what I'm doing wrong.

Traceback:
File "mysite/urls.py" in <module>
  3. from sitemap import *
File "mysite/sitemap.py" in <module>
  5. class Sitemap(sitemaps.Sitemap):

Exception Type: NameError at /
Exception Value: name 'sitemaps' is not defined

Here is the sitemap.py file

from django.contrib.sitemaps import Sitemap
from meddy1.models import Doctor
import datetime

class Sitemap(Sitemap):
    def __init__(self, names):
        self.names = names

    def items(self):
        return self.names

    def changefreq(self, obj):
        return 'weekly'

    def lastmod(self, obj):
        return datetime.datetime.now()

    def location(self, obj):
        return reverse(obj)


class DoctorSitemap(Sitemap):
    changefreq = "Daily"
    priority = 1

    def items(self):
        return Doctor.objects.all()

    def lastmod(self, obj):
        return obj.date

Here is the urls.py file

from django.conf.urls import patterns, include, url
from django.contrib import admin
from sitemap import *

admin.autodiscover()

sitemaps = {
    'pages':Sitemap(['homepage_imprint', 'homepage_archive']),
    'doctor':DoctorSitemap,
    'site':Sitemap(['name_of_url', 'name_of_url']),
}

urlpatterns = patterns('',
    url(r'^', include('meddy1.urls')),
    url(r'^', include('django.contrib.auth.urls')),
    url(r'^admin/', include(admin.site.urls)),
    url(r'^sitemap\.xml', include('django.contrib.sitemaps.views.sitemap'),{'sitemaps': sitemaps}), 
)

回答1:

You imported Sitemaps from the module, not the module itself. Remove the module name:

class Sitemap(Sitemap):

This will just about work, even though you are replacing the imported class here.

Alternatively and arguably clearer as to what you are doing, adjust your import of the module. Change the import from:

from django.contrib.sitemaps import Sitemap

to:

from django.contrib import sitemaps

回答2:

Martijn already provided correct answer, I just want to add a more general note about namespaces in Python: every name you use in Python has to come from somewhere. There is a number of built-in names that are always available, e.g. dir(). Other than the built-ins, every name has to be either created in your own code in the module OR imported from some other module or package:

>>> x
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'x' is not defined
>>> x = 1
>>> x
1
>>> sys
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined
>>> import sys
>>> sys
<module 'sys' (built-in)>

来源：https://stackoverflow.com/questions/25220561/django-1-6-name-sitemaps-is-not-defined

标签

python

django

django-sitemaps