Quixote

2012年10月28日 (日) 03:50的最后版本

Quixote is yet another framework for developing Web applications in Python.

对于robust, quixote是经过大规模实际应用检验的, douban.com的主要动力就是它.

在放弃使用Zope后，MEMS Exchange 决定开发 Quixote

若使用 apache, 请事先安装 mod_python 或 mod_scgi

[编辑] 在线演示

http://demo.huihoo.com/quixote

[编辑] 安装指南

获得 quixote http://quixote.python.ca/releases/Quixote-2.4.tar.gz
tar zxvf Quixote-2.4.tar.gz
cd Quixote-2.4 

python -c "import os, quixote; print os.path.dirname(quixote.__file__)"  // 检查是否已有quixote安装
python setup.py install  // quixote 安装到 :/usr/lib/python2.3/site-packages/quixote 
若出现 error: invalid Python installation: unable to open /usr/lib/python2.3/config/Makefile (No such file or directory)
请安装 #apt-get install python2.3-dev
或 /usr/local/lib/python2.4/site-packages/quixote/server/  // 使用了 Python 2.4
或 /usr/local/lib/python2.5/site-packages/quixote/server/ // 使用了 Python 2.5
demo 被安装到 /usr/local/lib/python2.4/site-packages/quixote/demo/
python demo/mini_demo.py
http://localhost:8080
python server/simple_server.py
http://localhost:8080
python server/simple_server.py --port 4000
http://localhost:4000

通过mod_python与Apache的整合

#apt-get install apache2-dev 安装 apxs2 , apxs 针对 Apache 1.x

获得 http://www.apache.org/dist/httpd/modpython/mod_python-3.2.10.tgz 
./configure --with-apxs=/usr/bin/apxs2
make
make install
vi /etc/apache2/sites-enabled/000-default
相关细节: /usr/lib/python2.3/site-packages/quixote/server/mod_python_handler.py
   LoadModule python_module /usr/lib/apache2/modules/mod_python.so
   <LocationMatch "^/quixote(/|$)">
       SetHandler python-program
       PythonHandler quixote.server.mod_python_handler
       PythonOption quixote-publisher-factory quixote.demo.create_publisher
       PythonInterpreter quixote.demo
       PythonDebug On
   </LocationMatch>

/etc/init.d/apache2 restart
http://localhost/quixote

Windows用户

cd Quixote-2.4
修改 setup.py 
build_extensions = True
python setup.py build_ext --compiler=mingw32 install

通过scgi

http://www.mems-exchange.org/software/scgi/
python setup.py install
LoadModule scgi_module /usr/local/lib/python2.3/site-packages/mod_scgi.so
<Location "/">
    SetHandler scgi-handler // Apache 2.0 need, Apache 1.3 don't need
    SCGIServer 1localost:3000
    SCGIHandler On
</Location>

[编辑] Quixote Sample

touch miniqx.py

#!/usr/bin/env python
from quixote.publish import Publisher
from quixote.directory import Directory

class RootDirectory(Directory):
    _q_exports = [, 'hello']
    def _q_index(self):
    return <html>
              <body>
               Simple Quixote Server
               A <a href="hello">link</a>.

              </body>
              </html>
            
def hello(self):
    return '<html><body>Hello world!

<a href="/">Home</a></body></html>'

def create_publisher():
    return Publisher(RootDirectory(),
    display_exceptions='plain')

if __name__ == '__main__':
    from quixote.server.simple_server import run
    print 'creating demo listening on http://192.168.1.3:8082/'
    run(create_publisher, host='192.168.1.3', port=8082)

python minipx.py

http://192.168.1.3:8082

[编辑] Quixote Toolkit

Publisher: maps URLs to Python code
HTTPRequest, HTTPResponse classes
Web server interfaces for CGI, FastCGI, SCGI, mod_python
Python Templating Language (optional)
Form framework (optional)

How Quixote Works

[编辑] 核心原则

Quixote is built on four core principles:

Publishing function results: Quixote's main job is using a URL to look up a Python callable (e.g., a function or method) and put its results on the web.
The URL is part of the user interface, and the organization of source code and URL-space should roughly correspond.
Embedding HTML in Python is cleaner and easier than embedding Python in HTML. // 类似 Java Servlet
No magic: when Quixote can't figure out what to do, it refuses to guess the programmer's intent, preferring to raise an exception instead.

[编辑] Web Interface

The web interface to SPLAT! is implemented in the splat.web package, with the following modules:

splat.web.util (splat/web/util.ptl)
splat.web.index (splat/web/index.ptl)
splat.web.bug_ui (splat/web/bug_ui.ptl)
splat.web.prefs (splat/web/prefs.ptl)

In fact, there are many useful analogies between a traditional filesystem-based web server (such as Apache) and Quixote's Python-centric way of building a web site.:

**Table 1**
Filesystem (e.g., Apache)	Quixote
directory	Python namespace (module, package, ...)
file	Python callable object (function, method, ...)
index.html	_q_index()
file exists, is readable	callable object exists, is in _q_exports

[编辑] 相关项目

[编辑] 成功应用

more apps : http://www.mems-exchange.org/software/quixote/apps.html

[编辑] 相关链接

http://www.quixote.ca/
http://www.quixote.ca/talks/
Developing Web Applications with Quixote - http://www.amk.ca/talks/quixote
http://www.mems-exchange.org/software/quixote/
http://www.memsnet.org/
http://quixote.python.ca/releases/
http://download.huihoo.com/quixote
http://docs.huihoo.com/quixote
http://www.amk.ca/
The MEMS Exchange Architecture - http://www.amk.ca/python/writing/mx-architecture/
Support for Quixote and REST Etc - http://docs.huihoo.com/homepage/dkuhlman/quixote_index.html

<discussion>characters_max=300</discussion>

@@ 第93行： / 第93行： @@
 python minipx.py
   http://192.168.1.3:8082
-Do you have more great artilces like this one?
+==Quixote Toolkit==
+* Publisher: maps URLs to Python code
+* HTTPRequest, HTTPResponse classes
+* Web server interfaces for CGI, FastCGI, SCGI, mod_python
+* [[Python Templating Language]] (optional)
+* [[Quixote Form Framework|Form framework]] (optional)
+[[How Quixote Works]]
 ==核心原则==
 Quixote is built on four core principles: