enthought/encore — pull request #20 by pankajp (2012-02-06 07:27:31+00:00)
Title: ENH: EventManager: Add tracing ability to trace event manager actions.

Emit, connect, disconnect, and listener callback can now be traced by
setting a trace function. Each of these can be vetoed by the
trace function by returning True.
Also added a trace class which simply logs the execution.