当debug在生产环境中为False时，Django抛出500

我无法理解为什么Django 3在我运行DEBUG=False时失败。此外，似乎还有一个问题与url:

www.domain.com/ -> Does not work
www.domain.com/en/ -> No problem

日志似乎提到了一百万个问题，但我不明白最初的问题是什么，所以我正在寻求帮助:

Exception while resolving variable 'self' in template '404.html'.
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/core/handlers/exception.py", line 47, in inner
response = get_response(request)
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/core/handlers/base.py", line 167, in _get_response
callback, callback_args, callback_kwargs = self.resolve_request(request)
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/core/handlers/base.py", line 290, in resolve_request
resolver_match = resolver.resolve(request.path_info)
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/urls/resolvers.py", line 585, in resolve
raise Resolver404({'tried': tried, 'path': new_path})
django.urls.exceptions.Resolver404: {'tried': [[<URLResolver <URLPattern list> (admin:admin) '^django-admin/'>], [<URLResolver <module 'wagtail.admin.urls' from '/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/wagtail/admin/urls/__init__.py'> (None:None) '^admin/'>], [<URLResolver <module 'wagtail.documents.urls' from '/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/wagtail/documents/urls.py'> (None:None) '^documents/'>], [<URLPattern '^i18n/$' [name='set_language']>], [<URLPattern '^sitemap.xml$'>], [<URLResolver <URLResolver list> (None:None) 'bg/'>]], 'path': ''}
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/base.py", line 829, in _resolve_lookup
current = current[bit]
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/context.py", line 83, in __getitem__
raise KeyError(key)
KeyError: 'self'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/base.py", line 835, in _resolve_lookup
if isinstance(current, BaseContext) and getattr(type(current), bit):
AttributeError: type object 'RequestContext' has no attribute 'self'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/base.py", line 843, in _resolve_lookup
current = current[int(bit)]
ValueError: invalid literal for int() with base 10: 'self'
#####################
# ...
# Rest of debug lines: https://pastebin.com/5AqDZu11
# ...
#####################
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/base.py", line 837, in _resolve_lookup
current = getattr(current, bit)
AttributeError: 'NoneType' object has no attribute 'url_name'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/base.py", line 843, in _resolve_lookup
current = current[int(bit)]
ValueError: invalid literal for int() with base 10: 'url_name'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/pp/www/SmileDesign/venv/lib/python3.7/site-packages/django/template/base.py", line 850, in _resolve_lookup
(bit, current))  # missing attribute
django.template.base.VariableDoesNotExist: Failed lookup for key [url_name] in None
Internal Server Error: /favicon.ico
"GET /favicon.ico HTTP/1.1" 500 680

我看到它在底部说Internal Server Error: /favicon.ico，我怀疑这是罪魁祸首，但问题仍然存在，即使我尝试解决方法，如:

url(r'^favicon.ico$', RedirectView.as_view(url=staticfiles_storage.url('img/favicon.ico'), permanent=True)),

我仍然得到以:

结尾的500

Internal Server Error: /
"GET / HTTP/1.1" 500 680
"GET /favicon.ico HTTP/1.1" 301 0
"GET /static/img/favicon.be884a05bb00.ico HTTP/1.1" 200 9896

通过查看第一行，似乎是404.html

的问题。

{% extends "base.html" %}
{% block body_class %}template-404{% endblock %}
{% block content %}
<h1>Page not found</h1>
<h2>Sorry, this page could not be found.</h2>
{% endblock %}

如果我删除扩展base.html的行，它都运行，但我不清楚为什么。

{% load static wagtailuserbar %}
<!DOCTYPE html>
<!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->
<head>
<script type="text/javascript" src="{% static 'js/is-mobile.min.js' %}"></script>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>
{% block title %}
{% if self.seo_title %}
{{ self.seo_title }}
{% elif self.translated_title %}
{{ self.translated_title }}
{% else %}
{{ self.title }}
{% endif %}
{% endblock %}
{% block title_suffix %}
{% with self.get_site.site_name as site_name %}
{% if site_name %}- {{ site_name }}{% endif %}
{% endwith %}
{% endblock %}
</title>
<link rel="shortcut icon" href="{% static 'img/favicon.ico' %}">
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="{% block meta_description %}{% endblock %}" />
<meta name="keywords" content="{% block meta_keywords %}{% endblock %}" />
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" type="text/css" href="{% static 'slick/slick.css' %}"/>
{# Global stylesheets #}
{% if debug %}
<link rel="stylesheet" type="text/css" href="{% static 'css/main.css' %}">
{% else %}
<link rel="stylesheet" type="text/css" href="{% static 'css/main.min.css' %}">
{% endif %}
{% if not request.is_preview %}
{# The page is not in preview mode #}
{# Put google analytics, mixpanel, etc... here #}
{% endif %}
{% block extra_css %}
{# Override this in templates to add extra stylesheets #}
{% endblock %}
</head>
<body class="{% block body_class %}{% endblock %}">
{% wagtailuserbar %}
{% block navigation %}
{% include 'partials/_navigation.html' %}
{% endblock %}
<div class="content">{% block content %}{% endblock %}</div>
{% block footer %}
{% include 'partials/_footer.html' %}
{% endblock %}
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script type="text/javascript" src="{% static 'slick/slick.min.js' %}"></script>
<script src="https://unpkg.com/scrollreveal@3.3.5/dist/scrollreveal.min.js"></script>
<script type="text/javascript" src="{% static 'js/parallax.min.js' %}"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/parallax/3.1.0/parallax.min.js"></script>
<script id="developedby" data-client-id="d640d636-cbe0-493c-b51a-124becd2cd6d" src="https://hakomo.s3.eu-central-1.amazonaws.com/static/js/webdevelopmentbyhakomo.js"></script>
<script src="{% static 'js/min/main.js' %}"></script>
{% block extra_js %}
{# Override this in templates to add extra javascript #}
{% endblock %}
</body>
</html>

我的urls . py:


urlpatterns = [
url(r'^django-admin/', admin.site.urls),
url(r'^admin/', include(wagtailadmin_urls)),
url(r'^documents/', include(wagtaildocs_urls)),
url(r'^i18n/$', set_language, name='set_language'),
url(r'^sitemap.xml$', sitemap, sitemaps),
url(r'^favicon.ico$', RedirectView.as_view(url=staticfiles_storage.url('img/favicon.ico'), permanent=True)),
]
urlpatterns += i18n_patterns(
# These URLs will have /<language_code>/ appended to the beginning
url(r'', include(content_urls)),
url(r'^search/$', search_views.search, name='search'),

url(r'', include(wagtail_urls)),
)

if settings.DEBUG:
from django.conf.urls.static import static
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
# Serve static and media files from development server
urlpatterns += staticfiles_urlpatterns()
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

所以除了理解为什么扩展碱基是一个问题，
我也想知道为什么我们一开始就得到404。

感谢您的帮助

第一行说:

Exception while resolving variable 'self' in template '404.html'.

并且您在base.html中使用了self，因此当您删除

时

{% extends "base.html" %}

一切正常

所以Django无法解析变量self，

请用views.py更新您的问题，它将此上下文变量self传递给base.html

这肯定会清除东西

在Python 中，我们应该避免使用self这样的保留关键字作为变量名。

相关内容

最新更新

热门标签：