Geany is a small and lightweight integrated development environment.

The basic features of Geany are:
- syntax highlighting
- code completion
- auto completion of constructs like if, for and while, XML and HTML
- call tips
- many supported filetypes like C, Java, PHP, HTML, Python, Perl, Pascal
- symbol lists
- embedded terminal emulation

IDLE is an Integrated Development Environment for Python.
IDLE is written using Tkinter and is therefore available on different operating systems.