Epsilon is a set of Python utility modules, commonly used by all Divmod.org Python-based projects. . This is intended mainly as a support package for code used by Divmod projects, however it contains many useful modules. . Currently included: * a powerful date/time formatting and import/export class (extime.Time), for exchanging date and time information between all Python's various ways to interpret objects as times or time deltas * tools for managing concurrent asynchronous processes within Twisted * a metaclass which helps you define classes with explicit states * a featureful Version class * a formal system for application of monkey-patches.