这是一个 DRF 中 urls.py 的写法示例，减少重复看文档的时间。

from django.contrib import admin
from django.urls import path, include
from rest_framework import routers

from main.views.book import BookViewSet, BookAuthorViewSet, BookPublisherViewSet
from main.views.user import SignupView

router = routers.DefaultRouter()
router.register('books', BookViewSet)
router.register('authors', BookAuthorViewSet)
router.register('publishers', BookPublisherViewSet)

urlpatterns = [
    path('', include(router.urls)),

    path('signup/', SignupView.as_view(), name='signup'),

    path('admin/', admin.site.urls),
]