django - URLconf をロードするときに Django が警告をスローするのはなぜですか?

Question

運用サーバーで Django アプリを実行しています。nginx の背後にある gunicorn 0.14.2 で処理されます。(gunicorn ワーカーをリロードして) アプリをリロードすると、次のエラーが発生します。

Traceback (most recent call last):

 File "/opt/nybooks/venv/myapp/lib/python2.6/site-packages/django/core/handlers/base.py", line 101, in get_response
   request.path_info)

 File "/opt/nybooks/venv/myapp/lib/python2.6/site-packages/django/core/urlresolvers.py", line 250, in resolve
   for pattern in self.url_patterns:

 File "/opt/nybooks/venv/myapp/lib/python2.6/site-packages/django/core/urlresolvers.py", line 283, in _get_url_patterns
   raise ImproperlyConfigured("The included urlconf %s doesn't have any patterns in it" % self.urlconf_name)

ImproperlyConfigured: The included urlconf myapp.urls doesn't have any patterns in it

この問題を抱えている他の人は、URLconf で使用しているときに発生することを一般的に指摘していますがreverse、私は URLconf で使用reverseしていません (また、サードパーティのアプリでも使用していません)。また、このエラーは本番環境でのみ発生します。開発環境 (Django 開発サーバーを使用) やステージングサーバー (nginx の背後で gunicorn 0.14.2 を使用) では発生しません。また、リロード時以外にサイトに問題が発生することはないようです。

問題の原因は何ですか？

メインの URLconf (およびスタックトレースで参照されているもの) は次のとおりです。

from django.conf.urls.defaults import *
from django.contrib import admin
from django.conf import settings
from django.http import HttpResponse, Http404
from django.views.generic.simple import direct_to_template, redirect_to

from myapp.apps.magazine.views import *
from myapp.apps.books.views import *
from myapp.apps.forms.views import *
from myapp.apps.blogext.views import *
from myapp.apps.sharing.views import expand_url, email_link_send
from myapp.apps.magazine.feeds import *

from satchmo_utils import urlhelper

from satchmo_store.urls import urlpatterns
from myapp.apps.myapp_shop.views import *

admin.autodiscover()

if settings.SHOP_BASE == '':
  shopregex = '^'
else:
  shopregex = '^' + settings.SHOP_BASE[1:] + '/'


myapp_patterns = patterns('',
  # calendar
  (r'^calendar/',            include('events.urls')),
  # for multimedia SWF access
  #(r'^crossdomain.xml$', direct_to_template, {'template': 'crossdomain.xml'}),
  # intercept checkout
  # TODO: need to use a config value
  (r'^catalog/checkout/$', 'myapp.apps.cart.views.myapp_checkout', {'SSL': not settings.LOCAL_DEV}, 'myapp_checkout'),
  (r'^catalog/add/$', 'myapp.apps.cart.views.smart_add_wrapper', {}, 'myapp_smart_add'),
  # URLs for NYRB apps
  (r'^$',                         direct_to_template, {'template': 'newhomepage.html'}),
  (r'^newhomepage/$',             direct_to_template, {'template': 'newhomepage.html'}),
  (r'^mobile/$',                  redirect_to, {'url': '/', 'permanent': True}),
  (r'^books/authors/',            include('myapp.apps.books.urls.authors')),
  (r'^books/',                    include('myapp.apps.books.urls.books')),
  (r'^articles/',                 include('myapp.apps.magazine.urls.articles')),
  (
    r'^mobile/articles/archives/(?P<year>\d{4})/(?P<month>[a-z]{3})/(?P<day>\d{2})/(?P<slug>[-\w]+)/$',
    redirect_to,
    {'url': '/articles/archives/%(year)s/%(month)s/%(day)s/%(slug)s/', 'permanent': True},
  ),
  # for national poetry month (april)
  url(
    regex   = r'^national-poetry-month/',
    view    = poetry_month,
    name    = 'poetry_month',
  ),
  (r'^issues/',                   include('myapp.apps.magazine.urls.issues')),
  (r'^contributors/',             include('myapp.apps.magazine.urls.contributors')),
  (r'^galleries/',                include('myapp.apps.magazine.urls.illustrations')),
  (r'^multimedia/',               include('myapp.apps.multimedia.urls.multimedia')),
  (r'^online/$',                  direct_to_template, {'template': 'online.html'}),

  #(r'^search/',                   include('myapp.apps.search.urls')),
  (r'^search/', include('solango.urls')),
  (r'^textareas/', include('myapp.apps.textareas.urls')),

  (r'',                           include('myapp.apps.forms.urls')),
  (r'^utils/',                    include('myapp.apps.utils.urls')),
  #(r'^rss/$',                     'myapp.apps.magazine.views.rss_list'),
  (r'^rss/huffpo/$',              redirect_to, {'url': '/articles/feeds/huffpo/', 'permanent': False}),
  (r'^rss/googlenews/$',          redirect_to, {'url': '/articles/feeds/googlenews/', 'permanent': False}),
  (r'^newsletter/',               include('myapp.apps.newsletter.urls')),
  (r'^subscriptions/',            include('myapp.apps.newsubscriptions.urls')),
  (r'^shared/',                   include('myapp.apps.sharing.urls')),
  (r'^counter/',                  include('myapp.apps.counter.urls')),

  # Redirects for legacy NYRB system
  (r'^nyrev/(\w+)',                         uber_legacy_article_redirect),
  (r'^nyrev/',                              redirect_to, {'url': '/'}),
  (r'contents/(?P<legacy_date>\d+)/',       legacy_issue_detail_redirect),
  (r'^archives/browse/?$',                  legacy_browse_archives),
  (r'^gallery/gallery-browse/?$',           legacy_gallery_browse),
  (r'^gallery/',                            legacy_illustration),
  (r'authors/(?P<legacy_author_id>\d+)/',   legacy_author_detail_redirect),
  #(r'shop/product',                         legacy_book_detail_redirect),
  (r'^shop/product/?$',                     legacy_product),
  (r'^myapp/browse/?$',                      legacy_book_browse),

  (r'blogs/myapplog/post/(\d+)/(?P<slug>[-\w]+)/$', solango_blogsearch_redirect),

  # URL shortening
  (r'^u/(?P<short_url>[a-zA-Z0-9]+)/$', expand_url),

  # NYRB shop
  (r'^shop/',                     include('myapp.apps.myapp_shop.urls')),
  (r'^admin/shop/order/csv/?', csv_order_export_day),
  (r'^admin/shop/order/(?P<order_id>\d+)/csv/?', csv_order_export),

  # URLs for Savoy apps
  (r'^tags/',                     include('savoy.contrib.sections.tag_urls')),
  (r'^podcasts/',                 include('savoy.contrib.podcasts.urls')),
  (r'^blogs/$',                   redirect_to, {'url': "/blogs/myapplog/", 'permanent': False}),
  (r'^blogs/',                    include('savoy.contrib.blogs.urls')),
  (r'^media/',                    include('savoy.core.media.urls')),

  # this is to use our own edit profile view
  (r'^users/(?P<username>.+)/edit/$', edit_profile),
  (r'^users/',                    include('savoy.core.profiles.urls')),

  # django-authopenid
  (r'^account/getusername/',      get_lost_username),

  #(r'account/signin/?',            'myapp.apps.forms.views.dual_login'),
  (r'account/signin/?',            'django.contrib.auth.views.login', {'template_name': 'authopenid/signin.html'}),
  (r'account/signout/?',           'django.contrib.auth.views.logout', {'next_page': '/'}),
  (r'account/sendpw/?',            'myapp.apps.forms.views.dual_sendpw'),
  (r'account/resetpw/?',           'myapp.apps.forms.views.reset_pw'),
  (r'account/signup/?',            'myapp.apps.forms.views.link_and_signup'),

  #(r'^account/',                  include('django_authopenid.urls')),

  # django-mailfriend
  (r'^mail_friend/send/?',        email_link_send),
  (r'^mail_friend/',              include('mailfriend.urls')),

  # django.contrib.comments

  # Django admin (Satchmo additions):
  (r'^admin/print/(?P<doc>[-\w]+)/(?P<id>\d+)',                     'shipping.views.displayDoc'),
  (r'^admin/product/configurableproduct/(?P<id>\d+)/getoptions/',   'product.views.get_configurable_product_options'),

  # Orders
  (r'^admin/open-orders/$', 'myapp.apps.myapp_shop.views.open_orders'),

  # Institutional subscription CSV
  (r'^admin/subscriptions/institutionalsubscription\.csv', 'myapp.apps.subscriptions.views.institutional_sub_csv'),

  # COUNTER admin for institutional reports
  #(r'^admin/institution-counts/multiple-report/csv/$',           'myapp.apps.subscriptions.views.institution_multiple_csv'),
  #(r'^admin/institution-counts/multiple-report/$',               'myapp.apps.subscriptions.views.institution_multiple_report'),
  (r'^admin/institution-counts/institutions/(?P<id>\d+)/csv/',   redirect_to, {'url': '/counter/%(id)s.csv'}),
  (r'^admin/institution-counts/institutions/(?P<id>\d+)/$',      redirect_to, {'url': '/counter/%(id)s/'}),
  #(r'^admin/institution-counts/process_file/?$',                 'myapp.apps.subscriptions.views.institution_process_file'),
  (r'^admin/institution-counts/$',                               redirect_to, {'url': '/counter/'}),

  # Django admin (standard)
  (r'^admin/doc/',                include('django.contrib.admindocs.urls')),
  (r'^admin/',                    include(admin.site.urls)),

  # custom feeds
  (r'^feed/author/(?P<slug>[-\w]+)/$', AuthorFeed()),
)

# attach satchmo patterns after our patterns so we can override if needed
from satchmo_store.urls import urlpatterns
urlpatterns = myapp_patterns + urlpatterns

if settings.DEBUG:
    urlpatterns += patterns('django.views.static',
        (r'media/(?P<path>.*)', 'serve', {'document_root': settings.MEDIA_ROOT}),
    )

score 0 · Accepted Answer

奇妙な振る舞いはif settings.DEBUG、何らかの理由でurlpatternsが空になる前の原因である可能性があります。

開発サーバーを実行すると、静的アプリからurlpatternsが入力されます。本番環境で実行しているときは、空のままです。

これは次のような句で簡単に確認できます

if urlpatterns:
    # something is in urlpatterns
    # What's its type, contents, ...?
else:
    # urlpatterns is empty

これを理解したら、さらに深く掘り下げることができます。単体テストにチェックを追加したり、より堅牢にしたい場合はurlsモジュールをインポートして、Pythonシェルで直接チェックを行うこともできます。

score 0 · Accepted Answer

ものの代わりにurlpatterns = myapp_patterns + urlpatterns、確かに代わりmyapp_patterns urlpatternsにバットを中止し、その端の中に次のようなものを入れることができます:

(r'^', include('satchmo_store.urls')),

これは URL パターンを含める「Django」の方法ですか?

これで問題が解決するかもしれませんが、わかりません。一見の価値があると思います。

score 0 · Accepted Answer

私は、これは単なる予感だと思います.あなたのURLはおそらく問題ありません.（ステージングされた開発マシンでは問題が発生せず、本番環境でのみリロードするため）おそらくgunicornがモジュールを再ロードする方法と、pythonがコンパイルされたコードの方法に問題があります.インタープリターの異なるバージョン間での動作とイテレーターの動作方法ですが、これもすべて勘です。

I recommend that you use the same version of python that you have on production in your staged machine and see if you can recreate the error if there already same version, then it must be something else, the reason I ask is that most production machines tend to use older versions of python, though I could be wrong.

good luck.

django - URLconf をロードするときに Django が警告をスローするのはなぜですか?

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