devel/py-undefined 0.0.8 DragonFly

Ever needed a global object that act as None but not quite? Like for example keyword argument for function, where None make sense, so you need a default value.

One solution is to create as singleton object: mysingleton = object()

Though it becomes difficult to track the singleton across libraries, and teach users where to import this from. It's also relatively annoying use this singleton across library.

Introducing undefined: >>> import undefined >>> from undefined import Undefined >>> undefined is Undefined True