AttributeError:模块“pages.views”没有属性“home\u view”

Question

我正在按照Django初学者的教程逐字逐句地创建一个名为“Pages”的项目，突然，当我试图访问本地主机页面（http://127.0.0.1:8000/）时，我的计算机给了我一个错误（AttributeError），该页面应该是说“Hello World”。而不是看到该语句，那里有一个“无法访问此网站”的页面。我完全搞不懂为什么会发生这种情况，因为我逐字逐句地听老师讲课，却得到了不同的结果。如果有人能帮忙，我们将不胜感激

这是我的档案

视图.py

from django.http import HttpResponse
from django.shortcuts import render

# Create your views here.
def home_view(*args, **kwargs): # args, kwargs
    return HttpResponse("<h1>Hello World</h1>") # string of HTML code

url.py

"""trydjango URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.0/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path

from pages import views

urlpatterns = [
    path('', views.home_view, name='home'),
    path('admin/', admin.site.urls),
]

错误消息

AttributeError: module 'pages.views' has no attribute 'home_view'

回溯

(trydjango) lyons-MacBook-Air:src lyons$ python manage.py runserver
Performing system checks...

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x10d5a6b90>
Traceback (most recent call last):
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/management/base.py", line 364, in check
    include_deployment_checks=include_deployment_checks,
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/management/base.py", line 351, in _run_checks
    return checks.run_checks(**kwargs)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/checks/registry.py", line 73, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/urls/resolvers.py", line 399, in check
    for pattern in self.url_patterns:
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/urls/resolvers.py", line 540, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/urls/resolvers.py", line 533, in urlconf_module
    return import_module(self.urlconf_name)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/lyons/Dev/trydjango/src/trydjango/urls.py", line 22, in <module>
    path('', home_view, name='home'),
NameError: name 'home_view' is not defined
Performing system checks...

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x10d4a3b90>
Traceback (most recent call last):
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/management/base.py", line 364, in check
    include_deployment_checks=include_deployment_checks,
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/management/base.py", line 351, in _run_checks
    return checks.run_checks(**kwargs)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/checks/registry.py", line 73, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/urls/resolvers.py", line 399, in check
    for pattern in self.url_patterns:
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/urls/resolvers.py", line 540, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/Users/lyons/Dev/trydjango/lib/python3.7/site-packages/django/urls/resolvers.py", line 533, in urlconf_module
    return import_module(self.urlconf_name)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/lyons/Dev/trydjango/src/trydjango/urls.py", line 22, in <module>
    path('', views.home_view, name='home'),
AttributeError: module 'pages.views' has no attribute 'home_view'

Answer 1

我也犯了同样的错误。我在trydjango文件夹而不是pages文件夹中添加了views.py，效果很好

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

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', views.homepage),
]

Answer 2

尝试按以下方式更改您的URL模式：

path('', home_view, name='home'),

Answer 3

在本教程中收到相同的错误。问题是我使用的是本教程前面的“产品”文件夹中的“views.py”文件。您必须在新“pages”文件夹中的“views.py”文件中编辑HttpResponse代码