from django.urls import include, path

common_url_patterns = (

    [

        path("app-ns1/", include([])),

        path("app-url/", include([])),

    ],

    "common",

)

nested_url_patterns = (

    [

        path("common/", include(common_url_patterns, namespace="nested")),

    ],

    "nested",

)

urlpatterns = [

    path("app-ns1-0/", include(common_url_patterns, namespace="app-include-1")),

    path("app-ns1-1/", include(common_url_patterns, namespace="app-include-2")),

    # 'nested' is included twice but namespaced by nested-1 and nested-2.

    path("app-ns1-2/", include(nested_url_patterns, namespace="nested-1")),

    path("app-ns1-3/", include(nested_url_patterns, namespace="nested-2")),

    # namespaced URLs inside non-namespaced URLs.

    path("app-ns1-4/", include([path("abc/", include(common_url_patterns))])),

]