如何编写单文件Django应用程序？
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我想在一个文件中编写一个非常小的Django应用程序，需要所有相应的模块和东西，然后能够将其作为普通的Python脚本运行，如下所示：
$ python myapp.py
答案
您可能想要考虑Simon Willison的图书馆：
来自readme：
djng是一个依赖于宏框架（Django）的微框架。
我对微框架的定义：允许您在单个模块中创建整个Python Web应用程序的东西：
import djng def index(request): return djng.Response('Hello, world') if __name__ == '__main__': djng.serve(index, '0.0.0.0', 8888)[...]
另一答案
它是另一个紧凑但功能强大的Web框架。
主页中的示例：
import web
urls = ('/(.*)', 'hello')
app = web.application(urls, globals())
class hello:
def GET(self, name):
if not name:
name = 'world'
return 'Hello, ' + name + '!'
if __name__ == "__main__":
app.run()
另一答案
下面的代码表示单个文件django app。它是从this interesting book chapter无耻地复制的，可以使用python singlefile.py runserver运行（如果文件名为singlefile.py）。至少在Django 1.9和2.0中起作用。
import sys
from django.conf import settings
settings.configure(
DEBUG=True,
SECRET_KEY='thisisthesecretkey',
ROOT_URLCONF=__name__,
MIDDLEWARE_CLASSES=('django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware')
)
from django.conf.urls import url
from django.http import HttpResponse
def index(request): return HttpResponse('Hello World')
urlpatterns = (url(r'^$', index), )
if __name__ == "__main__":
from django.core.management import execute_from_command_line
execute_from_command_line(sys.argv)
......它确实看起来很像un1t的答案，除了一些details。
另一答案
Django入门也很简单。这是一个10行的单文件Django webapp：
import os
from django.conf.urls.defaults import patterns
from django.http import HttpResponse
filepath, extension = os.path.splitext(__file__)
ROOT_URLCONF = os.path.basename(filepath)
def yoohoo(request):
return HttpResponse('Yoohoo!')
urlpatterns = patterns('', (r'^hello/$', yoohoo))
查看我的博客文章Minimal Django了解详情。
另一答案
这是一个在Django中实现的简单CMS，作为单个文件。它是由Paul Bissex写的。其中一些已经“高尔夫”并且可以进行一些扩展，但它仍然相对容易阅读。
来源已经从他的pastebin消失了，但我保存了它：
#!/usr/bin/env python
"""
jngo -- The unhealthily compressed Django application.
Usage: ./jngo.py
Assuming a working install of Django (http://djangoproject.com/) and SQLite
(http://sqlite.org), this script can be executed directly without any other
preparations -- you don't have to do `setup.py install`, it doesn't
need to be on your Python path, you don't need to set DJANGO_SETTINGS_MODULE,
you don't need a webserver. You don't even need content -- the first time it's
run, it will create a SQLite database in the same directory as the script
and populate it with sample pages.
Features:
* Editable content on all pages
* Dynamically generated navigation buttons
* Optional private-access pages
* Optional per-page comments
* RSS feed of latest comments, with autodiscovery
Author: Paul Bissex <pb@e-scribe.com>
URL: http://news.e-scribe.com/
License: MIT
FAQS:
Q: Should I use this as an example of excellent Django coding practices?
A: Um, no. This is pretty much the opposite of excellent Django coding practices.
Q: Why did you do such a terrible thing?
A: At first, it was just a perverse experiment. It ended up being a
good way to refresh my memory on some Django internals, by trying all
kinds of things that broke in weird ways.
"""
#--- Settings ---
NAME = ROOT_URLCONF = "jngo"
DEBUG = TEMPLATE_DEBUG = True
SITE_ID = 3000
HOSTNAME_AND_PORT = "127.0.0.1:8000"
DATABASE_ENGINE = "sqlite3"
DATABASE_NAME = NAME + ".db"
INSTALLED_APPS = ["django.contrib.%s" % app for app in "auth admin contenttypes sessions sites flatpages comments".split()]
TEMPLATE_LOADERS = ('django.template.loaders.app_directories.load_template_source', NAME + '.template_loader')
MIDDLEWARE_CLASSES = ('django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware')
TEMPLATE_CONTEXT_PROCESSORS = (NAME + '.context_processor', "django.core.context_processors.auth", "django.core.context_processors.request")
#--- Template loader and templates ---
def template_loader(t, _):
from django.template import TemplateDoesNotExist
try:
return {
'base.html': """<html><head><title>{{ flatpage.title }}</title><link rel='alternate' type='application/rss+xml' href='/feed/'><style type="text/css">body { margin: 15px 50px; background: #eee; color: #343; font-family: sans-serif; } ul { padding: 0; } li { display: inline; background: #383; padding: 4px 8px; margin: 3px; } li:hover { background: #252; } dd { border-bottom: 1px dotted #666; } a { color: #383; text-decoration: none; } li a { color: #fff; } .anav { background: #141; } .rnav a { color: #ff4; } .error { color: #e22; } #footer { border-top: 1px dotted #555; font-size: 80%; color: #555; margin-top: 15px } #comments { background: #ddd; margin-top: 20px; padding: 10px; } dt { font-weight: bold; margin-top: 1em; }</style></head><body><ul>{% for nav in navs %}<li class="{% ifequal nav.url flatpage.url %}anav {% endifequal %}{% if nav.registration_required %}rnav {% endif %}"><a href="{{ nav.url }}">{{ nav.title }}</a></li>{% endfor %}</ul>{% block content %}{% endblock %}<div id="footer">{% if request.user.is_staff %}<a href="javascript:(function(){if(typeof%20ActiveXObject!='undefined'){var%20x=new%20ActiveXObject('Microsoft.XMLHTTP')}else%20if(typeof%20XMLHttpRequest!='undefined'){var%20x=new%20XMLHttpRequest()}else{return;}x.open('GET',location.href,false);x.send(null);try{var%20type=x.getResponseHeader('x-object-type');var%20id=x.getResponseHeader('x-object-id');}catch(e){return;}document.location='/admin/'+type.split('.').join('/')+'/'+id+'/';})()">Edit this page</a> (as staff user <a href="/admin/">{{ request.user }}</a>)<br>{% endif %}Powered by <a href="http://djangoproject.com/">Django</a> {{ version }}<br></div></body></html>""",
'flatpages/default.html': """{% extends "base.html" %}{% load comments %}{% block content %}<h1>{{ flatpage.title }}</h1>{{ flatpage.content }}{% if flatpage.enable_comments %}<div id="comments">{% get_free_comment_list for flatpages.flatpage flatpage.id as comments %}<h3>Comments!</h3><dl>{% for comment in comments %}{% include "comment.html" %}{% endfor %}</dl>{% free_comment_form for flatpages.flatpage flatpage.id %}</div>{% endif %}{% endblock %}""",
'comments/free_preview.html': """{% extends "base.html" %}{% block content %}<h1>Comment preview</h1><dl>{% include "comment.html" %}</dl><form action='.' method='post'><input type='hidden' name='gonzo' value='{{ hash }}'><input type='hidde以上是关于如何编写单文件Django应用程序？的主要内容，如果未能解决你的问题，请参考以下文章
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