Django - NameError：name 'app1'が定義されていません

Question

私はvirtualenvを設定して、新しいプロジェクト "devp1"の下に "app1"という新しいアプリケーションを作成しました。 devp1」の "APP1" ディレクトリにある "devp1" ディレクトリ内

from django.shortcuts import render 
from django.http import HttpResponse 
# Create your views here. 

def home(request): 
    return HttpResponse("wow my first page") 

settings.py

INSTALLED_APPS = [ 
'django.contrib.admin', 
'django.contrib.auth', 
'django.contrib.contenttypes', 
'django.contrib.sessions', 
'django.contrib.messages', 
'django.contrib.staticfiles', 
'app1', 
] 

url.pyで

views.py：私は次のようにファイルを編集しましたAPP1を 『"私は、サーバーを実行したとき、見ることができない理由DIR

urlpatterns = [ 
url(r'^admin/', admin.site.urls), 
url(r'','app1.views.home'), 
] 

しかし、私は次のエラーを受け取る、私は見つかっていません』。

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f7ab830b400> 
Traceback (most recent call last): 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/utils/autoreload.py", line 227, in wrapper 
    fn(*args, **kwargs) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/core/management/commands/runserver.py", line 125, in inner_run 
    self.check(display_num_errors=True) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/core/management/base.py", line 359, in check 
    include_deployment_checks=include_deployment_checks, 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/core/management/base.py", line 346, in _run_checks 
    return checks.run_checks(**kwargs) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/core/checks/registry.py", line 81, in run_checks 
    new_errors = check(app_configs=app_configs) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/core/checks/urls.py", line 16, in check_url_config 
    return check_resolver(resolver) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/core/checks/urls.py", line 26, in check_resolver 
    return check_method() 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/urls/resolvers.py", line 254, in check 
    for pattern in self.url_patterns: 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/utils/functional.py", line 35, in __get__ 
    res = instance.__dict__[self.name] = self.func(instance) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/urls/resolvers.py", line 405, in url_patterns 
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/utils/functional.py", line 35, in __get__ 
    res = instance.__dict__[self.name] = self.func(instance) 
    File "/home/usr1/dev/lib/python3.4/site-packages/django/urls/resolvers.py", line 398, in urlconf_module 
    return import_module(self.urlconf_name) 
    File "/home/usr1/dev/lib64/python3.4/importlib/__init__.py", line 109, in import_module 
    return _bootstrap._gcd_import(name[level:], package, level) 
    File "<frozen importlib._bootstrap>", line 2254, in _gcd_import 
    File "<frozen importlib._bootstrap>", line 2237, in _find_and_load 
    File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked 
    File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked 
    File "<frozen importlib._bootstrap>", line 1129, in _exec 
    File "<frozen importlib._bootstrap>", line 1471, in exec_module 
    File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed 
    File "/home/usr1/dev/devp1/devp1/urls.py", line 22, in <module> 
    url(r'', app1.views.home), 
    NameError: name 'app1' is not defined 

Answer 1

引用符があなたのビューにないようです。トレースバックは

url(r'', app1.views.home), 

を示していますが、あなたのurls.pyファイルには、それはあなたのアプリケーションのビューを見つけることができませんこれらの引用符なし

url(r'','app1.views.home'), 

を示しています。私はあなたの正規表現があなたが望むように動作するとは思わない。代わりにこれを試してみます：

from app1 import views as app1_views 

urlpatterns = [ 
    url(r'^admin/', admin.site.urls), 
    url(r'^$', app1_views.home, name='home'), 
]