Programming

Scratch.

Scratch is a programming language that makes it easy to create your own interactive stories, animations, games, music, and art -- and share your creations on the web.

As young people create and share Scratch projects, they learn important mathematical and computational ideas, while also learning to think creatively, reason systematically, and work collaboratively.

Geany.

Geany is a small and lightweight Integrated Development Environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other packages. Another goal was to be as independent as possible from a special Desktop Environment like KDE or GNOME - Geany only requires the GTK2 runtime libraries.

Some basic features of Geany:
Syntax highlighting
Code folding
Symbol name auto-completion
Construct completion/snippets
Auto-closing of XML and HTML tags
Call tips
Many supported filetypes including C, Java, PHP, HTML, Python, Perl, Pascal
Symbol lists
Code navigation
Build system to compile and execute your code
Simple project management
Plugin interface.

wxGlade.

wxGlade is a GUI designer written in Python with the popular GUI toolkit wxPython, that helps you create wxWidgets/wxPython user interfaces. At the moment it can generate Python, C++, Perl, Lisp and XRC (wxWidgets' XML resources) code.

Spe.

Stani's Python Editor (SPE) is a cross-platform integrated development environment (IDE) for the Python programming language. The IDE is developed and maintained by Stani Michiels.

SPE runs on GNU/Linux, Mac OS X and Microsoft Windows and has syntax highlighting, auto completion, auto indentation, call tips, multiple tabs, syntax checking and an integrated GUI designer (wxGlade) and debugger (winpdb). It is based on wxPython. Available under the GNU General Public License, SPE is free software.

Winpde.

Winpdb is a platform independent GPL Python debugger with support for multiple threads, namespace modification, embedded debugging, encrypted communication and is up to 20 times faster than pdb.