Django: 404 page not found

[Homer]

I met "404" page not found when I try to enter 127.0.0.1:8000/cn/bedroom . It says on the webpage that "C:/Django/final/media/bedroom" does not exist". Why would this happen?

urls.py:

from django.conf.urls.defaults import *

from final import settings

 

from django.contrib import admin

 

admin.autodiscover()

 

urlpatterns = patterns('',

 

    url(r'^admin/', include(admin.site.urls)),

 

    url(r'^cn/', include('final.photo.urls')),

 

    url(r'^cn/(?P<path>.*)$', 'django.views.static.serve',

 

        {'document_root': settings.MEDIA_ROOT}),

 

)

photo/urls.py:

from django.conf.urls.defaults import *

 

from final.photo.views import List, Detail

 

urlpatterns = patterns('',

 

    url(r'^$', List),

    url(r'^/bedroom/', Detail),

 

)

 

photo/views.py:

 

from django.template import loader, Context, RequestContext

 

from django.http import HttpResponse

 

from final.photo.models import Image, Audio, Pinyin, SImage

 

from django.shortcuts import render_to_response

 

def List(request):

 

    ShowSImage = SImage.objects.all()

    ShowLink = Image.objects.all()

 

    context = RequestContext(request, {

 

         'ShowSImage': ShowSImage, 'ShowLink': ShowLink

 

    })

 

    return render_to_response('list.html', context)

 

def Detail(request):

    ShowImage = Image.objects.all()

    ShowPinyin = Pinyin.objects.all()

    ShowAudio = Audio.objects.all()

    context = RequestContext(request, {

        'ShowAudio': ShowAudio, 'ShowImage': ShowImage, 'ShowPinyin': ShowPinyin

    })

    return render_to_response('detail.html', context)

detail.html:

{% extends "base.html" %}

 

{% block title %}{{ item.title }}{% endblock %}

 

{% block content %}

 

<h2>{{ item.title }}</h2>

<img src="{{ item.get_image_url }}" />

{% if object.caption %}<p>{{ object.caption }}</p>{% endif %}

 

{% endblock %}

Thanks in advance!

[Stanwin Siow]

check your Media_root in settings.py.

It could be a missing stroke.

Best Regards,

Stanwin Siow

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[Homer]

I think "media_root" works well since I also used pictures on my another page. Maybe there is something wrong in my urlconf...

在 2012年4月2日星期一UTC-4下午8时41分02秒，St@n写道：

Best Regards,

Stanwin Siow

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[Sergiy Khohlov]

please post section of the setting.py file

TEMPLATE_CONTEXT_PROCESSORS

Has this file

'django.core.context_processors.static',

2012/4/3 Homer <hi...@foxmail.com>:

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[Homer]

Sorry, I did not find "TEMPLATE_CONTEXT_PROCESSORS" in my settings.py. I do not know whether it is related to the version of Django. I am using Django 1.3 right now.

在 2012年4月3日星期二UTC-4上午2时20分30秒，skhohlov写道：

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[Sergiy Khohlov]

this section from my last project :

TEMPLATE_CONTEXT_PROCESSORS = (

'django.core.context_processors.request',
'django.core.context_processors.debug',
'django.core.context_processors.i18n',
'django.core.context_processors.media',
'django.core.context_processors.static',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
)

You have problem without 'django.core.context_processors.media'
with media content , take a look at
https://docs.djangoproject.com/en/dev/howto/static-files/

2012/4/3 Homer <hi...@foxmail.com>:

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[Homer]

I add the section you provided to my settings.py but it still does not work... 

在 2012年4月3日星期二UTC-4上午8时57分57秒，skhohlov写道：

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[Sergiy Khohlov]

Could you please add your setting.py from root of the your project to
your letter ?

2012/4/3 Homer <hi...@foxmail.com>:

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[Tom Evans]

On Tue, Apr 3, 2012 at 1:14 AM, Homer <hi...@foxmail.com> wrote:
> I met "404" page not found when I try to enter 127.0.0.1:8000/cn/bedroom .
> It says on the webpage that "C:/Django/final/media/bedroom" does not exist".
> Why would this happen?
>
> urls.py:
>
> from django.conf.urls.defaults import *
> from final import settings
> from django.contrib import admin
> admin.autodiscover()
>
> urlpatterns = patterns('',
>
>     url(r'^admin/', include(admin.site.urls)),
>     url(r'^cn/', include('final.photo.urls')),
>     url(r'^cn/(?P<path>.*)$', 'django.views.static.serve',
>         {'document_root': settings.MEDIA_ROOT}),
> )
> photo/urls.py:
>
> from django.conf.urls.defaults import *
> from final.photo.views import List, Detail
> urlpatterns = patterns('',
>     url(r'^$', List),
>     url(r'^/bedroom/', Detail),
> )
>

You have conflicting URL space, you have configured "^cn/" to be both
where your static files are served from, and also where your views are
served from. Split the two up, and use the correct URL, and you should
not have any problems. Eg:

urlpatterns = patterns('',
    url(r'^admin/', include(admin.site.urls)),

    url(r'^photos/', include('final.photo.urls')),
    url(r'^docs/(?P<path>.*)$', 'django.views.static.serve',
        {'document_root': settings.MEDIA_ROOT}),
)

I'm not sure why people are interested in your
TEMPLATE_CONTEXT_PROCESSORS settings when the request isn't even
making it to the view...

Cheers

Tom

[Sebastian Goll]

On Mon, 2 Apr 2012 17:14:00 -0700 (PDT)
Homer <hi...@foxmail.com> wrote:

> I met "404" page not found when I try to enter 127.0.0.1:8000/cn/bedroom .
> It says on the webpage that "C:/Django/final/media/bedroom" does not
> exist". Why would this happen?

I am positive the problem is with your URL patterns:

> # urls.py
> urlpatterns = patterns('',
> …

> url(r'^cn/', include('final.photo.urls')),
> url(r'^cn/(?P<path>.*)$', 'django.views.static.serve',
> {'document_root': settings.MEDIA_ROOT}),
> )
>

> # photo/urls.py

> urlpatterns = patterns('',
> url(r'^$', List),
> url(r'^/bedroom/', Detail),
> )

Trying to access 'cn/bedroom' _should_ redirect to view Detail, I guess.

But what happens is that 'cn/' gets stripped via the main level pattern,
including 'final.photo.urls'. There no match is found due to the leading
'/' in the second pattern: r'^/bedroom/'. Thus the search continues with
'cn/(?P<path>.*)$' in the top-level URL patterns which tries to access a
non-existing media file in settings.MEDIA_ROOT.

Therefore, to fix the issue, you should remove the leading forward slash
'/' in the second pattern in your photo/urls.py.

For reference, see the notes section in

https://docs.djangoproject.com/en/1.4/topics/http/urls/#example
– "There's no need to add a leading slash, because every URL has that.
For example, it's ^articles, not ^/articles."

Best wishes,
Sebastian.

[Homer]

OK.

# Django settings for final project.

DEBUG = True

TEMPLATE_DEBUG = DEBUG

ADMINS = (

    # ('Your Name', 'your_...@example.com'),

)

MANAGERS = ADMINS

DATABASES = {

    'default': {

        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.

        'NAME': 'C:/Django/final/data.db',                      # Or path to database file if using sqlite3.

        'USER': '',                      # Not used with sqlite3.

        'PASSWORD': '',                  # Not used with sqlite3.

        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.

        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.

    }

}

# Local time zone for this installation. Choices can be found here:

# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name

# although not all choices may be available on all operating systems.

# On Unix systems, a value of None will cause Django to use the same

# timezone as the operating system.

# If running in a Windows environment this must be set to the same as your

# system time zone.

TIME_ZONE = 'America/Chicago'

# Language code for this installation. All choices can be found here:

# http://www.i18nguy.com/unicode/language-identifiers.html

LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not

# to load the internationalization machinery.

USE_I18N = True

# If you set this to False, Django will not format dates, numbers and

# calendars according to the current locale

USE_L10N = True

# Absolute filesystem path to the directory that will hold user-uploaded files.

# Example: "/home/media/media.lawrence.com/media/"

MEDIA_ROOT = 'C:/Django/final/media/'

# URL that handles the media served from MEDIA_ROOT. Make sure to use a

# trailing slash.

# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"

MEDIA_URL = '/media/'

# Absolute path to the directory static files should be collected to.

# Don't put anything in this directory yourself; store your static files

# in apps' "static/" subdirectories and in STATICFILES_DIRS.

# Example: "/home/media/media.lawrence.com/static/"

STATIC_ROOT = ''

# URL prefix for static files.

# Example: "http://media.lawrence.com/static/"

STATIC_URL = '/static/'

# URL prefix for admin static files -- CSS, JavaScript and images.

# Make sure to use a trailing slash.

# Examples: "http://foo.com/static/admin/", "/static/admin/".

ADMIN_MEDIA_PREFIX = '/static/admin/'

# Additional locations of static files

STATICFILES_DIRS = (

    # Put strings here, like "/home/html/static" or "C:/www/django/static".

    # Always use forward slashes, even on Windows.

    # Don't forget to use absolute paths, not relative paths.

)

# List of finder classes that know how to find static files in

# various locations.

STATICFILES_FINDERS = (

    'django.contrib.staticfiles.finders.FileSystemFinder',

    'django.contrib.staticfiles.finders.AppDirectoriesFinder',

#    'django.contrib.staticfiles.finders.DefaultStorageFinder',

)

# Make this unique, and don't share it with anybody.

SECRET_KEY = 'zg*^7-e5e(#wu6-543z0y#em+xvjo092h^%@*&qed^hqqa!2i5'

# List of callables that know how to import templates from various sources.

TEMPLATE_LOADERS = (

    'django.template.loaders.filesystem.Loader',

    'django.template.loaders.app_directories.Loader',

#     'django.template.loaders.eggs.Loader',

)

MIDDLEWARE_CLASSES = (

    'django.middleware.common.CommonMiddleware',

    'django.contrib.sessions.middleware.SessionMiddleware',

    'django.middleware.csrf.CsrfViewMiddleware',

    'django.contrib.auth.middleware.AuthenticationMiddleware',

    'django.contrib.messages.middleware.MessageMiddleware',

)

ROOT_URLCONF = 'final.urls'

TEMPLATE_DIRS = ("C:/Django/final/photo/templates"

    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".

    # Always use forward slashes, even on Windows.

    # Don't forget to use absolute paths, not relative paths.

)

INSTALLED_APPS = (

    'django.contrib.auth',

    'django.contrib.contenttypes',

    'django.contrib.sessions',

    'django.contrib.sites',

    'django.contrib.messages',

    'django.contrib.staticfiles',

    # Uncomment the next line to enable the admin:

    'django.contrib.admin',

    'final.photo',

    # Uncomment the next line to enable admin documentation:

    # 'django.contrib.admindocs',

)

# A sample logging configuration. The only tangible logging

# performed by this configuration is to send an email to

# the site admins on every HTTP 500 error.

# See http://docs.djangoproject.com/en/dev/topics/logging for

# more details on how to customize your logging configuration.

LOGGING = {

    'version': 1,

    'disable_existing_loggers': False,

    'handlers': {

        'mail_admins': {

            'level': 'ERROR',

            'class': 'django.utils.log.AdminEmailHandler'

        }

    },

    'loggers': {

        'django.request': {

            'handlers': ['mail_admins'],

            'level': 'ERROR',

            'propagate': True,

        },

    }

}

TEMPLATE_CONTEXT_PROCESSORS = (

    'django.core.context_processors.request',

    'django.core.context_processors.debug',

    'django.core.context_processors.i18n',

    'django.core.context_processors.media',

    'django.core.context_processors.static',

    'django.contrib.auth.context_processors.auth',

    'django.contrib.messages.context_processors.messages',

)

在 2012年4月3日星期二UTC-4上午9时58分54秒，skhohlov写道：

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[Homer]

OK.

TEMPLATE_CONTEXT_PROCESSORS = (

    'django.core.context_processors.request',

    'django.core.context_processors.debug',

    'django.core.context_processors.i18n',

    'django.core.context_processors.media',

    'django.core.context_processors.static',

    'django.contrib.auth.context_processors.auth',

    'django.contrib.messages.context_processors.messages',

)

在 2012年4月3日星期二UTC-4上午9时58分54秒，skhohlov写道：

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[Homer]

If I split them up, I cannot see my pictures on the webpage since the links of them becomes "http://127.0.0.1:8000/cn/simages/XXX.jpg". But my pictures stored in "http://127.0.0.1:8000/media/simages/XXX.jpg"... That's why I mix them up...

在 2012年4月3日星期二UTC-4上午10时09分11秒，Tom Evans写道：

[Homer]

I fixed it by changing the urlconf to r'^bedroom/'. Thanks!!!!!!!!!! 

在 2012年4月3日星期二UTC-4上午10时17分03秒，Sebastian写道：