AttributeError：模块“posts.views”没有属性“home”

Question

从 Nick Walter 在 Django 上的 Udemy 课程中学习，我正在编写自己的“信用卡编辑”应用程序。基本功能已经到位。但现在我正在尝试添加一个博客文章应用程序来配合它。我使用$ python3 manage.py startapp posts 成功启动了该应用程序。但是当我开始填写 urls.py、模板和子视图时，我的服务器已经停止运行。我明白了：

文件“/home//dev/projects/python/2018-and-2019/CC_Redact/CC_Redact/urls.py”，第 10 行，

url(r'^$', views.home, name='home'),

AttributeError: 模块 'posts.views' 没有属性 'home'

这是使用内置测试服务器的带有 Python 3.6 的 Django 2.0（还没有靠近生产环境）。我在激活的虚拟环境中运行我的代码。这些是我的 requirements.txt 的内容：

Django==2.0.13

枕头==5.4.1

psycopg2==2.7.7

psycopg2-binary==2.7.7

pytz==2018.9

很基本，对吧？

urls.py 在我的主要项目文件夹中：

from django.contrib import admin
from django.urls import path
from . import views
from posts import views


urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^$', views.home, name='home'),
    url(r'^result/', views.result, name='result'),
    url(r'^james/', views.posts, name='james'), 

views.py（在应用文件夹中）：

from django.shortcuts import render

# Create your views here.

def james(request):
    return render(request, 'posts/james.html')

如您所见，我已将函数命名为“james”以及模板。

这里是posts/templates/posts/james.html：

from django.shortcuts import render

# Create your views here.

def james(request):
    return render(request, 'posts/james.html')

最后，这是我的文件树和目录结构：。

运行服务器时，我希望看到“你在 James 的帖子中！”导航到 localhost:8000/posts 时以粗体显示。相反，我收到：

python manage.py runserver     
Performing system checks...
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f41c70286a8>
Traceback (most recent call last):
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/core/management/base.py", line 364, in check
    include_deployment_checks=include_deployment_checks,
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/core/management/base.py", line 351, in _run_checks
    return checks.run_checks(**kwargs)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/core/checks/registry.py", line 73, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/urls/resolvers.py", line 399, in check
    for pattern in self.url_patterns:
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/urls/resolvers.py", line 540, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/site-packages/django/urls/resolvers.py", line 533, in urlconf_module
    return import_module(self.urlconf_name)
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/venv/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/<user>/dev/projects/python/2018-and-2019/CC_Redact/CC_Redact/urls.py", line 10, in <module>
    url(r'^$', views.home, name='home'),
AttributeError: module 'posts.views' has no attribute 'home'

编辑：顺便说一句：Here is my project on GitHub。我正在接受拉取请求。

Answer 1

您确实需要更加专注于课程。 view.posts 是指有一个名为帖子的 def 调用该 def。 总之view.posts调用posts def in view。

改变

def James(request):

到

def posts(request):

在 view.py 你还需要有一个名为“home”的def