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Metadata-Version: 2.1 Name: greenlet Version: 0.4.15 Summary: Lightweight in-process concurrent programming Home-page: https://github.com/python-greenlet/greenlet Maintainer: Alexey Borzenkov Maintainer-email: snaury@gmail.com License: MIT License Platform: any Classifier: Intended Audience :: Developers Classifier: License :: OSI Approved :: MIT License Classifier: Natural Language :: English Classifier: Programming Language :: C Classifier: Programming Language :: Python Classifier: Programming Language :: Python :: 2 Classifier: Programming Language :: Python :: 2.4 Classifier: Programming Language :: Python :: 2.5 Classifier: Programming Language :: Python :: 2.6 Classifier: Programming Language :: Python :: 2.7 Classifier: Programming Language :: Python :: 3 Classifier: Programming Language :: Python :: 3.0 Classifier: Programming Language :: Python :: 3.1 Classifier: Programming Language :: Python :: 3.2 Classifier: Programming Language :: Python :: 3.3 Classifier: Programming Language :: Python :: 3.4 Classifier: Programming Language :: Python :: 3.5 Classifier: Programming Language :: Python :: 3.6 Classifier: Programming Language :: Python :: 3.7 Classifier: Operating System :: OS Independent Classifier: Topic :: Software Development :: Libraries :: Python Modules .. image:: https://secure.travis-ci.org/python-greenlet/greenlet.png :target: http://travis-ci.org/python-greenlet/greenlet 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: - `Concurrence`_ - `Eventlet`_ - `Gevent`_ .. _Concurrence: http://opensource.hyves.org/concurrence/ .. _Eventlet: http://eventlet.net/ .. _Gevent: http://www.gevent.org/ 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 https://pypi.python.org/pypi/greenlet The source code repository is hosted on github: https://github.com/python-greenlet/greenlet Documentation is available on readthedocs.org: https://greenlet.readthedocs.io