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Eventlet is a concurrent networking library for Python that allows you to change how you run your code, not how you write it.
It uses epoll or libevent for highly scalable non-blocking I/O. Coroutines ensure that the developer uses a blocking style of programming that is similar to threading, but provide the benefits of non-blocking I/O. The event dispatch is implicit, which means you can easily use Eventlet from the Python interpreter, or as a small part of a larger application.
It's easy to get started using Eventlet, and easy to convert existing
applications to use it. Start off by looking at the `examples`_,
`common design patterns`_, and the list of `basic API primitives`_.
.. _examples: http://eventlet.net/doc/examples.html
.. _common design patterns: http://eventlet.net/doc/design_patterns.html
.. _basic API primitives: http://eventlet.net/doc/basic_usage.html
Quick Example
===============
Here's something you can try right on the command line::
% python
>>> import eventlet
>>> from eventlet.green import urllib2
>>> gt = eventlet.spawn(urllib2.urlopen, 'http://eventlet.net')
>>> gt2 = eventlet.spawn(urllib2.urlopen, 'http://secondlife.com')
>>> gt2.wait()
>>> gt.wait()
Getting Eventlet
==================
The easiest way to get Eventlet is to use pip::
pip install eventlet
The development `tip`_ is available as well::
pip install 'eventlet==dev'
.. _tip: http://bitbucket.org/eventlet/eventlet/get/tip.zip#egg=eventlet-dev
Building the Docs Locally
=========================
To build a complete set of HTML documentation, you must have Sphinx, which can be found at http://sphinx.pocoo.org/ (or installed with `pip install Sphinx`)::
cd doc
make html
The built html files can be found in doc/_build/html afterward.
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