python - not - from django.urls import include, path

Django: de django.urls import reverse; ImportError: Ningún módulo llamado urls

Question

Esta pregunta ya tiene una respuesta aquí:

• "ImportError: Ningún módulo llamado urls" mientras sigue las respuestas de Django Tutorial 2

Estoy trabajando en el tutorial de DjangoProject con la aplicación de encuestas. Como dice el tutorial en la parte 4, estoy tratando de importar ''reverse'': from django.urls import reverse pero obteniendo el error:

de importación django.urls inversa ImportError: ningún módulo llamado urls

Cambié el ROOT_URLCONF a solo '' urls '', sin embargo, tampoco funcionó.

Cualquier ayuda se agradece, gracias.

settings.py

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = ''3jyaq2i8aii-0m=fqm#7h&ri2+!7x3-x2t(yv1jutwa9kc)t!e''

# SECURITY WARNING: don''t run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    ''polls.apps.PollsConfig'',
    ''django.contrib.admin'',
    ''django.contrib.auth'',
    ''django.contrib.contenttypes'',
    ''django.contrib.sessions'',
    ''django.contrib.messages'',
    ''django.contrib.staticfiles'',
]

MIDDLEWARE_CLASSES = [
    ''django.middleware.security.SecurityMiddleware'',
    ''django.contrib.sessions.middleware.SessionMiddleware'',
    ''django.middleware.common.CommonMiddleware'',
    ''django.middleware.csrf.CsrfViewMiddleware'',
    ''django.contrib.auth.middleware.AuthenticationMiddleware'',
    ''django.contrib.auth.middleware.SessionAuthenticationMiddleware'',
    ''django.contrib.messages.middleware.MessageMiddleware'',
    ''django.middleware.clickjacking.XFrameOptionsMiddleware'',
]

ROOT_URLCONF = ''mysite.urls''

TEMPLATES = [
    {
        ''BACKEND'': ''django.template.backends.django.DjangoTemplates'',
        ''DIRS'': [],
        ''APP_DIRS'': True,
        ''OPTIONS'': {
            ''context_processors'': [
                ''django.template.context_processors.debug'',
                ''django.template.context_processors.request'',
                ''django.contrib.auth.context_processors.auth'',
                ''django.contrib.messages.context_processors.messages'',
            ],
        },
    },
]

WSGI_APPLICATION = ''mysite.wsgi.application''


# Database
# https://docs.djangoproject.com/en/1.9/ref/settings/#databases

DATABASES = {
    ''default'': {
        ''ENGINE'': ''django.db.backends.sqlite3'',
        ''NAME'': os.path.join(BASE_DIR, ''db.sqlite3''),
    }
}


# Password validation
# https://docs.djangoproject.com/en/1.9/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        ''NAME'': ''django.contrib.auth.password_validation.UserAttributeSimilarityValidator'',
    },
    {
        ''NAME'': ''django.contrib.auth.password_validation.MinimumLengthValidator'',
    },
    {
        ''NAME'': ''django.contrib.auth.password_validation.CommonPasswordValidator'',
    },
    {
        ''NAME'': ''django.contrib.auth.password_validation.NumericPasswordValidator'',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/1.9/topics/i18n/

LANGUAGE_CODE = ''en-us''

TIME_ZONE = ''UTC''

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.9/howto/static-files/

STATIC_URL = ''/static/''

urls.py

from django.conf.urls import url, include
from django.contrib import admin

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

]

encuestas / views.py

from django.http import HttpResponse, HttpResponseRedirect
from .models import Question, Choice
from django.shortcuts import get_object_or_404, render
from django.urls import reverse


def index(request):
    latest_question_list = Question.objects.order_by(''-pub_date'')[:5]
    context = {
        ''latest_question_list'': latest_question_list,
        }
    return render(request, ''polls/index.html'', context)


def detail(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    return render(request, ''polls/results.html'', {''question'' : question})


def results(request, questioin_id):
    response = "you are looking at the results of question %s"
    return HttpResponse(response % question_id)

def vote(request, question_id):
    question = get_object_or_404(Question, pk=questioin_id)
    try:
        selected_choice = question.choice_set.get(pk=request.POST[''choice''])
    except (KeyError, Choice.DoesNotExist):
        return render(request, ''polls/detail.html'', {''question'': question,
                                                      ''error_message'': "you didnt select a choice",
                                                      })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        return HttpResponseRedirect(reverse(''polls:results'', args=
                                            (question.id,)))

encuestas / urls.py

from django.conf.urls import url
from . import views

app_name = ''polls''

urlpatterns = [
    url(r''^$'', views.index, name=''index''),
    url(r''^(?P<question_id>[0-9]+)/$'', views.detail, name=''detail''),
    url(r''^(?P<question_id>[0-9]+)/results/$'', views.results, name=''results''),
    url(r''^(?P<question_id>[0-9]+)/vote/$'', views.vote, name=''vote''), 
]

Answer 1

Estás en Django 1.9, deberías hacer:

from django.core.urlresolvers import reverse

La versión 1.10 es donde puedes hacer from django.urls import reverse