Sage Standard Packages

        sage -upgrade

From http://newcenturycomputers.net/projects/gdmodule.html: The GDmodule is an interface to the GD library written by Thomas Boutell. 'gd is a graphics library. It allows your code to quickly draw images complete with lines, arcs, text, multiple colors, cut and paste from other images, and flood fills, and write out the result as a PNG or JPEG file. This is particularly useful in World Wide Web applications, where PNG and JPEG are two of the formats accepted for inline images by most browsers.'

Mercurial is a free, distributed source control management tool. It
offers you the power to efficiently handle projects of any size while
using an intuitive interface. It is easy to use and hard to break,
making it ideal for anyone working with versioned files.

See http://mercurial.selenic.com/ for more information.

The Python Imaging Library (PIL) adds powerful image processing and
graphics capabilities to Python.  The library supports many file
formats.

Python is a dynamic object-oriented programming language that can be
used for many kinds of software development. It offers strong support
for integration with other languages and tools, comes with extensive
standard libraries, and can be learned in a few days. Many Python
programmers report substantial productivity gains and feel the
language encourages the development of higher quality, more
maintainable code.

For more details see http://www.python.org

SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.

It provides a full suite of well known enterprise-level persistence patterns, designed for efficient and high-performing database access, adapted into a simple and Pythonic domain language.

Website: http://www.sqlalchemy.org/