=================
 What is gevent?
=================

gevent is a coroutine_ -based Python_ networking library that uses
greenlet_ to provide a high-level synchronous API on top of the libev
event loop.

Features include:

* **Fast event loop** based on libev (epoll on Linux, kqueue on FreeBSD).
* **Lightweight execution units** based on greenlet.
* API that re-uses concepts from the Python standard library (for example there are :class:`gevent.event.Events` and :class:`gevent.queue.Queues`).
* :doc:`Cooperative sockets with SSL support <networking>`
* DNS queries performed through threadpool or c-ares.
* :ref:`Monkey patching utility <monkey-patching>` to get 3rd party modules to become cooperative


gevent is `inspired by eventlet
<http://blog.gevent.org/2010/02/27/why-gevent/>`_ but features more
consistent API, simpler implementation and better performance. Read
why others `use gevent
<http://groups.google.com/group/gevent/browse_thread/thread/4de9703e5dca8271>`_
and check out the list of the `open source projects based on gevent. <https://github.com/gevent/gevent/wiki/Projects>`_

gevent is written and maintained by `Denis Bilenko
<http://denisbilenko.com/>`_ with help from the `contributors <https://github.com/gevent/gevent/blob/master/AUTHORS#L1>`_ and is licensed under the MIT license.

:ref:`Continue reading <installation>` »

If you like gevent, :doc:`donate <sfc>` to support the development.

What are others saying?
=======================

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.. _coroutine: https://en.wikipedia.org/wiki/Coroutine
.. _Python: http://python.org
.. _greenlet: https://greenlet.readthedocs.io
