请确保urlpatterns是path（）和/或re\u path（）实例的列表

Question

我的urlpatterns怎么了？在

urlpatterns = [
    re_path(r'^dj-admin/', admin.site.urls),
    re_path(r'^admin/', include(wagtailadmin_urls)),
    re_path(r'^docs/', include(wagtaildocs_urls)),

    i18n_patterns(
        path(r'', include(wagtail_urls)),
        prefix_default_language = False
    )
]

ERRORS:
?: (urls.E004) Your URL pattern [ (None:None) ''>] is invalid. Ensure that urlpatterns is a list of path() and/or re_path() instances.

据我所知，它相当于docs中的示例：

^{pr2}$

顺便说一句：

In [1]: import django

In [2]: django.__version__
Out[2]: '2.0.5'

Answer 1

您已经将i18n_patterns放在模式列表中，但是这个函数本身生成一个urlpatterns列表，而不是一个模式。这与您找到的文档不同。在

使用串联：

urlpatterns = [
    re_path(r'^dj-admin/', admin.site.urls),
    re_path(r'^admin/', include(wagtailadmin_urls)),
    re_path(r'^docs/', include(wagtaildocs_urls)),
] + i18n_patterns(
    path(r'', include(wagtail_urls)),
    prefix_default_language = False
)

或在函数调用前面加上*以将所有元素合并到列表中：

^{pr2}$

{or newer是Python}1.5，它需要。在

文档使用了+=增强赋值到extend列表urlpatterns列表，这可能是一个很好的重复使用模式：

urlpatterns = [
    re_path(r'^dj-admin/', admin.site.urls),
    re_path(r'^admin/', include(wagtailadmin_urls)),
    re_path(r'^docs/', include(wagtaildocs_urls)),
]

urlpatterns += i18n_patterns(
    path(r'', include(wagtail_urls)),
    prefix_default_language = False
)