PUBLIC MARKS from roberto with tag python

This tutorial provides an introduction in using the Python programming language to create small programs for different forms of motion graphics, such as algorithmic animations or custom video processing.

Python

Audio editor.

Reading grads data

how to read GRADS binary files in python ?

Routes, dispatch and Kid together would make a nice un-framework.

Colubrid is a WSGI request handler which simplifies python web developement.

YAXL is a library for reading, writing and manipulating XML in Python.

We have developed an algorithm that can produce reasonable solutions to the Escherization problem. It is based on three large components:

EasyInstall is great, it automatically detects and installs all dependancies, but there are some other nifty things that you can do with it. Using the entry_points section of the setup.py, you can ‘register’ classes and functions, so they can be located later. Lets say you had a bunch of ‘plugins’ that you wanted dynamically find and load at runtime, with entry_points, it’s fun and easy.

A python library to parse, read and write JPEG EXIF and COM metadata.

Flup + WSGI

ClickChronicle keeps a record of your web browsing and allows you to search all the web pages that you have visited.

This recipe describes how to set up a simple HTTP server supporting SSL secure communications. It extends the SimpleHTTPServer standard module to support the SSL protocol. With this recipe, only the server is authenticated while the client remains unauthenticated (i.e. the server will not request a client certificate from the browser). So, the client (typically the browser) will be able to verify the server identity and secure its communications with the server.

This tool enables to do functional and load testing of web application.

GIMP plugin written in Python to create nice DVD covers.

This recipe measures the amount of time to perform each portion of a request to a single file many times, and prints the results in a somewhat reasonable fashion.

... is a python XUL toolkit written ontop of Twisted and Nevow

First, there's epsilon.extime, a module which offers conversion to and from a variety of time formats: RFC 2822 formatted dates, POSIX timestamps, datetime objects, struct_time objects, ISO8601 formatted timestamps, and a particular context-aware format known as the "human readable format". Additionally, it offers a Time class which can be constructed from or converted to any of these formats, as well as have certain date math performed on it.

This recipe uses NanoThreads. http://lgt.berlios.de/ It shows how simulated concurrency, (using generators as tasks), can be transparently combined with OS Level Python threads, as and when needed.

Creating code for labyrinth solvers is a quite traditional exercise. The following snippets provide versions in Python and in C of a concise labyrinth solver.

CrackAJAX is based around the concept of an AjaxPage, an HTML page that is "ajaxified." In its current incarnation, you can write the HTML code right in the docstring, or pass it a callable template rendering method. You extend the AjaxPage class, add your markup, and then add special methods. These special methods are decorated as either @clientside or @serverside, depending on where you want them to be run. @clientside methods translate the Python source code of the method to client-side JavaScript, and @serverside methods automatically generate an XML-RPC call to the server. You can call these seamlessly from your DHTML handlers, just like regular JavaScript.

The usual way to make a request to a database is to write a string with the SQL syntax, then execute this request and get the result as a list with cursor.fetchall() or cursor.fetchone() Python has list comprehensions to select items in an iterable if a certain condition is true ; this is very similar to database requests This recipe wraps a table of a DB-API compliant database in a class that implements the iteration protocol, so that you can use the for ... in ... if ... syntax

Right now, the lighttpd web server is all the rage with Ruby on Rails people, PHP people, and excellent hosting providers. Why is this? Because lighttpd is extremely lightweight, has a small footprint, scales like nobody’s business, and is fast fast fast. The internals of lighttpd are really interesting, using kqueue and other fancy asynchronous networking operating system support to really put Apache to shame. But, the internals of lighttpd are a topic for another day…