looking for a GUI digital clock

[Skaperen]

i am looking for a GUI LED-style digital clock program. the digits need to automatically fill the window i need to have a setting to set hours+minutes mode (4 digits) or hours+minutes+seconds mode (6 digits). nice features would include color setting for digits and background, different fonts, transparency for the window. and this needs to be written in Python and work on at least Ubuntu Linux. working on other systems would be great. i would prefer that at least work in Python3 but if it work on both Python3 and Python2 that would be nice.

the xclock program that come with Xwindows in Linux/Unix systems uses a text mode in the window when digital mode is chosen. this is not very useful.