Django: TypeError topic() got an unexpected keyword argument 'topics_id'

urls.py#coding=utf-8'''定义learning_logs的URL模式'''from django.conf.urls import urlfrom . import viewsurlpatterns = [#主页    url(r'^$',views.index,name='index'),    #显示所有的主题    url(r'^topics/$',views.topics,name='topics'),    #特定主题的详细页面    url(r'^topics/(?P<topics_id>\d+)/$',views.topic,name='topic'),]

views.py# -*- coding: utf-8 -*-from __future__ import unicode_literalsfrom django.shortcuts import renderfrom .models import Topic# Create your views here.def index(request):'''学习笔记的主页'''return render(request,'learning_logs/index.html')def topics(request):'''显示所有的主题'''topics=Topic.objects.order_by('date_added')context={'topics':topics}return render(request,'learning_logs/topics.html',context)def topic(request,topic_id):'''显示单个主题及其所有条目'''topic=Topic.objects.get(id=topic_id)entries=topic.entry_set.order_by('-date_added')context={'topic':topic,'entries':entries}return render(request,'learning_logs/topic.html',context)

models.py# -*- coding: utf-8 -*-from __future__ import unicode_literalsfrom django.db import models# Create your models here.class Topic(models.Model):'''用户学习的主题'''text=models.CharField(max_length=200)date_added=models.DateTimeField(auto_now_add=True)def __unicode__(self):'''返回模型的字符串表示'''return self.textclass Entry(models.Model):'''学到的有关某个主题的具体知识'''topic=models.ForeignKey(Topic)text=models.TextField()date_added=models.DateTimeField(auto_now_add=True)class Meta:verbose_name_plural='entries'def __unicode__(self):'''返回模型的字符串表示'''return self.text[:50]+"..."

urls.py中将?P<topic_id>匹配到的值存储到topics_id中

views.py接受正则表达式(?P<topic_id>\d+)捕获的值，使用get来获取到指定主题

urls.py与views.py中的参数需保持一致，上面代码中urls.py中的参数为topics_id，views.py中的参数为topic_id，所有报错

参考：https://stackoverflow.com/questions/37254829/django-got-an-unexpected-keyword-argument-id