Cool Python Modules

ConstrainedVariables

http://starship.skyport.net/crew/david_ascher/ConstrainedVariables/

The instances of these classes act like numbers, except that they have some optional restrictions:

	  x = Positive(3)
	  x = x - 2  # ok
	  x = x - 4  # not ok --> raises exception.
	

Mr. Creosote

http://starship.skyport.net/crew/jbauer/creosote/index.html

A lightweight message passing idiom using datagrams.

Python Imaging Library

http://starship.skyport.net/crew/fredrik/pil/pil0.3a1.htm

Gadfly! An SQL Database in Python

http://starship.skyport.net/crew/aaron_watters/kwParsing/

Implements lots of standard SQL in Python: not a competitor to Oracle, Sybase or even mySQL, this is great for small database projects that nevertheless need a sophisticated query capability.

mySQL interface

http://www.earthlight.co.nz/~joe/projects.html

Python interface to the mySQL relational database.

HTMLgen

http://starship.skyport.net/crew/friedrich/HTMLgen/html/main.html

Classes for generating HTML (as from CGI).

Asynchronous Socket Programming

http://squirl.nightmare.com/medusa/async_sockets.html

A library for building asynchronous socket clients and servers. A single program can 'simultaneously' communicate with many other clients and servers, using and implementing multiple protocols, all running within a single address space, on a single thread.

Medusa All-Python Web Server

http://www.nightmare.com/medusa/

Medusa can run an unlimited number of HTTP and FTP servers within a single address space, without the use of threads. Capable of impressive hit-rates (Linux 486 dx/2 : ~66 HTTP hits/second, in about 1.5 megs of virtual memory), this server can solve your performance problems while handing you the most powerful server-side scripting language available.

Bobo, A Web Development System

http://www.digicool.com/releases/bobo/

An object-request-broker (ORB) that converts HTTP requests to Python object request.

SWIG: Simplified Wrapper and Interface Generator

http://www.cs.utah.edu/~beazley/SWIG/

SWIG turns C/C++ declarations into a working scripting language interface. C functions become commands, C variables become scripting-language variables, and so on. By using ANSI C/C++ syntax, SWIG is easy to use, requires no modification to underlying C code, and is relatively simple to apply to existing applications.

Inter-Language Unification

ftp://ftp.parc.xerox.com/pub/ilu/ilu.html

ILU is a multi-language ORB that's mostly CORBA compatible.

Fnorb

http://www.dstc.edu.au/Fnorb/

Fnorb is a CORBA 2.0 ORB written in Python (with just the eensiest-teensiest bit of C code for marshalling and parsing). It's lighter-weight than ILU.

PyGrove

http://cito.uwaterloo.ca:80/~papresco/PySgml/

A true SGML parser that implements the SGML grove API. The standard Python sgmllib module is not a true SGML parser, in that it doesn't parse a DTD; PyGrove uses James Clark's SP parser and so parses correctly at the expense of a dependency on an external program.

XML Sig

http://www.python.org/sigs/xml-sig/

Several Python modules for XML processing are being worked on by the XML sig.

Numeric Python

http://www.sls.lcs.mit.edu/~jjh/numpy/

Numeric Python is a high-power extension to Python, which provides the Python user with a set of tools designed for fast computations on potentially huge data sets. It defines a new type of arrays which are multidimensional (unlike the standard 'array'), and provides a set of array manipulation functions, which make operating on these large arrays "en masse" quite efficient. Additionally, some linear algebra, fast fourier transform and random number generation libraries are included.

kjbuckets

http://starship.skyport.net/crew/aaron_watters/kjbuckets

Extremely fast set-theoretic set, graph and map data structures. Supports common (intersect, difference, union) set/graph operations as well as some obscure ones (composition, transpose, reachable set, transitive closure).