This package consists of a collection of core utility packages useful for building Python applications. This package is intended to be at the bottom of the software stack and have zero required external dependencies aside from the Python Standard Library.

Events: A package implementing a lightweight application-wide Event dispatch system. Listeners can subscribe to events based on Event type or by filtering on event attributes. Typical uses include UI components listening to low-level progress notifications and change notification for distributed resources.

Storage: Abstract base classes and concrete implementations of a basic key-value storage API. The API is intended to be general purpose enough to support a variety of local and remote storage systems.

Concurrent: A package of tools for handling concurrency within applications.

Terminal: Some utilities for working with text-based terminal displays.

• Python >= 2.6 (not Python 3)
• Sphinx, graphviz, pydot (documentation build)
• Some optional modules have dependencies on:
  • Requests (http://docs.python-requests.org/en/latest/)
  • Futures (https://code.google.com/p/pythonfutures/)