goless
Using the goless library, you can write Go language style concurrent programs in Python. goless provides functionality for channels, select, and goroutines. goless allows you to use Go's beautiful and elegant concurrency programming model, but in the familiar and comfortable language of Python.
goless works on top of gevent, PyPy, or Stackless Python. It works with PyPy, CPython, and Stackless Python interpreters, and Python 2.6 to 3.4.
goless has extensive testing, documentation and examples. See https://goless.readthedocs.org/ for more information.