python - AttributeError:模块“posts.views”没有属性“home”
问题描述
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
. 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。我得到:
文件“/home//dev/projects/python/2018-and-2019/CC_Redact/CC_Redact/urls.py”,第 10 行,在
url(r'^$', views.home, name='home'),
AttributeError:模块“posts.views”没有属性“home”
这是使用内置测试服务器的带有 Python 3.6 的 Django 2.0(还没有靠近生产环境)。我在激活的虚拟环境中运行我的代码。这些是我的 requirements.txt 的内容:
Django==2.0.13
枕头==5.4.1
psycopg2==2.7.7
psycopg2-二进制==2.7.7
pytz==2018.9
很基本,对吧?
urls.py在我的主要项目文件夹中:
from django.contrib import admin
from django.urls import path
from . import views
from posts import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^$', 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,我将函数命名为“james”以及模板。
这是posts/templates/posts/james.html:
from django.shortcuts import render
# Create your views here.
def james(request):
return render(request, 'posts/james.html')
在运行服务器时,我期待看到“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:这是我在 GitHub 上的项目。我正在接受拉取请求。
解决方案
你真的需要更多地关注课程。view.posts 是指有一个名为帖子的 def 调用该 def。简而言之,view.posts 在视图中调用帖子定义。
改变
def James(request):
至
def posts(request)
:
在 view.py 中,你还需要有一个名为“home”的 def
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