Urwid is a Python library for making text console applications. It has many features including fluid interface resizing, support for UTF-8 and CJK encodings, standard and custom text layout modes, simple markup for setting text attributes, and a powerful, dynamic list box that handles a mix of widget types. It is flexible, modular, and leaves the developer in control.
Standard GUI Framework for C is a framework for building GUI applications in ANSI/ISO standard C in a platform independent (i.e. portable) manner. The framework currently only targets X11, but there are plans to target both Microsoft Windows (Win32) and Apple Mac OS X (Carbon) after the initial release is done.