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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
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