Release Announcement: PARLEY version 0.2
PARLEY is an API for writing Python programs that implement the Actor model of distributed systems, in which lightweight concurrent processes communicate through asynchronous message-passing. Actor systems typically are easier to write and debug than traditional concurrent programs that use locks and shared memory.
PARLEY can run using either traditional native threads or user-space threads (i.e. the "tasklets" implemented by Stackless Python). A program written using PARLEY can choose between the two by changing a single line of code.
Code samples, documentation, and source code can be found at the PARLEY home page: http://osl.cs.uiuc.edu/parley/
PARLEY is licensed under the LGPL.