TortoiseHg is a shell extension that let users of Mercurial SCM (Hg) work directly from MS-Windows Explorer. It also includes a command line tool, hgtk, for use on Linux and other platforms.
CLIG - Command Line Interface Generator Clig is a code generator for several programming languages that allows you easy creation of command line parsers. Including a GUI and Command Line tool.
apt-gui is a graphical front end for the apt package management command line tool. apt-gui was written by Stephen Thorley as a exersize in python tkinter
This application checks the remaining training time of EVE Skills. It comes as a GNOME applet and as a command-line tool. EVE is a subscription-based MMORPG set in the far future with space combat, travel, research and marketing.
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pyMP is short for python music player. It started out in 2004 as a command line tool for playing cd's. The scope of the project kinda grew and now it is a fully functional MP3 player with a GUI. Check it out :)
Gemini is a suite that includes a command-line tool and a GUI to synchronize data between two or more folders. It will also include a Daemon for automatic syncs and some advanced Sync Functionalities.