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Lightweight in-process concurrent programming

Project Description

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 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

Release History

Release History

This version
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0.4.12

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0.4.11

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0.4.10

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0.4.9

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0.4.7

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0.4.6

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0.4.5

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0.4.4

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0.4.3

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0.4.2

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0.4.1

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0.4.0

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0.3.4

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0.3.3

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0.3.2

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0.3.1

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0.3

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0.2

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0.1

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Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
greenlet-0.4.12-cp26-cp26m-manylinux1_x86_64.whl (41.2 kB) Copy SHA256 Checksum SHA256 cp26 Wheel Feb 1, 2017
greenlet-0.4.12-cp26-cp26mu-manylinux1_x86_64.whl (41.2 kB) Copy SHA256 Checksum SHA256 cp26 Wheel Feb 1, 2017
greenlet-0.4.12-cp26-cp26m-win32.whl (15.4 kB) Copy SHA256 Checksum SHA256 cp26 Wheel Feb 1, 2017
greenlet-0.4.12-cp26-cp26m-win_amd64.whl (16.1 kB) Copy SHA256 Checksum SHA256 cp26 Wheel Feb 1, 2017
greenlet-0.4.12-cp27-cp27m-manylinux1_x86_64.whl (41.3 kB) Copy SHA256 Checksum SHA256 cp27 Wheel Feb 1, 2017
greenlet-0.4.12-cp27-cp27mu-manylinux1_x86_64.whl (41.3 kB) Copy SHA256 Checksum SHA256 cp27 Wheel Feb 1, 2017
greenlet-0.4.12-cp27-cp27m-win32.whl (15.2 kB) Copy SHA256 Checksum SHA256 cp27 Wheel Feb 1, 2017
greenlet-0.4.12-cp27-cp27m-win_amd64.whl (15.9 kB) Copy SHA256 Checksum SHA256 cp27 Wheel Feb 1, 2017
greenlet-0.4.12-cp33-cp33m-manylinux1_x86_64.whl (42.2 kB) Copy SHA256 Checksum SHA256 cp33 Wheel Feb 1, 2017
greenlet-0.4.12-cp33-cp33m-win32.whl (15.1 kB) Copy SHA256 Checksum SHA256 cp33 Wheel Feb 1, 2017
greenlet-0.4.12-cp33-cp33m-win_amd64.whl (15.8 kB) Copy SHA256 Checksum SHA256 cp33 Wheel Feb 1, 2017
greenlet-0.4.12-cp34-cp34m-manylinux1_x86_64.whl (45.2 kB) Copy SHA256 Checksum SHA256 cp34 Wheel Feb 1, 2017
greenlet-0.4.12-cp34-cp34m-win32.whl (15.1 kB) Copy SHA256 Checksum SHA256 cp34 Wheel Feb 1, 2017
greenlet-0.4.12-cp34-cp34m-win_amd64.whl (15.8 kB) Copy SHA256 Checksum SHA256 cp34 Wheel Feb 1, 2017
greenlet-0.4.12-cp35-cp35m-manylinux1_x86_64.whl (42.8 kB) Copy SHA256 Checksum SHA256 cp35 Wheel Feb 1, 2017
greenlet-0.4.12-cp35-cp35m-win32.whl (16.3 kB) Copy SHA256 Checksum SHA256 cp35 Wheel Feb 1, 2017
greenlet-0.4.12-cp35-cp35m-win_amd64.whl (17.9 kB) Copy SHA256 Checksum SHA256 cp35 Wheel Feb 1, 2017
greenlet-0.4.12-cp36-cp36m-manylinux1_x86_64.whl (43.0 kB) Copy SHA256 Checksum SHA256 cp36 Wheel Feb 1, 2017
greenlet-0.4.12-cp36-cp36m-win32.whl (16.3 kB) Copy SHA256 Checksum SHA256 cp36 Wheel Feb 1, 2017
greenlet-0.4.12-cp36-cp36m-win_amd64.whl (17.9 kB) Copy SHA256 Checksum SHA256 cp36 Wheel Feb 1, 2017
greenlet-0.4.12.tar.gz (57.3 kB) Copy SHA256 Checksum SHA256 Source Feb 1, 2017

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