How to install greenlet
- Download and install ActivePython
- Open Command Prompt
- Type
pypm install greenlet
Depended by
- circus-web
- close.consumer
- decanter
- diesel
- eventlet
- gevent
- gevent-websocket
- glance
- goldenarch
- greenhouse
- gruvi
- infi.tracing
- infinispan
- jega
- kpages
- maildump
- meinheld
- motor
- musubi
- p01.memcache
- pastegevent
- pillowtop
- prat-geventwebsocket
- PyFlow
- pyramid_socketio
- pytest-twisted
- qonos
- quantum
- scoop
- simx
- swift
- thriftworker
- tornalet
- twitterspawn
- tyron
- vaurien
- websocket
- wishbone
Lastest release
The greenlet package is a spin-off of Stackless, a version of CPython that supports micro-threads called "tasklets". Tasklets run pseudo-concurrently (typically in a single or a few OS-level threads) and are synchronized with data exchanges on "channels".
A "greenlet", on the other hand, is a still more primitive notion of micro-thread with no implicit scheduling; coroutines, in other words. This is useful when you want to control exactly when your code runs. You can build custom scheduled micro-threads on top of greenlet; however, it seems that greenlets are useful on their own as a way to make advanced control flow structures. For example, we can recreate generators; the difference with Python's own generators is that our generators can call nested functions and the nested functions can yield values too. Additionally, you don't need a "yield" keyword. See the example in tests/test_generator.py.
Greenlets are provided as a C extension module for the regular unmodified interpreter.
Greenlets are lightweight coroutines for in-process concurrent programming.
Who is using Greenlet?
There are several libraries that use Greenlet as a more flexible alternative to Python's built in coroutine support:
Getting Greenlet
The easiest way to get Greenlet is to install it with pip or easy_install:
pip install greenlet easy_install greenlet
Source code archives and windows installers are available on the python package index at http://pypi.python.org/pypi/greenlet
The source code repository is hosted on github: https://github.com/python-greenlet/greenlet
The master branch - i.e. the development version - can be installed directly by running one of the following:
pip install greenlet==dev easy_install greenlet==dev