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devel/py-greenlet,
Lightweight in-process concurrent programming
Branch: pkgsrc-2016Q4,
Version: 0.4.9,
Package name: py27-greenlet-0.4.9,
Maintainer: kamel.derouicheThe 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.
Required to run:[
lang/python27]
Required to build:[
pkgtools/cwrappers]
Master sites:
SHA1: 3978f3f9c3d6c809b583b3d03b231eb1e16505fd
RMD160: 548fd98f1fd4948e82a12c8bdefa7e3f2a3ec73c
Filesize: 76.294 KB
Version history: (Expand)
- (2017-01-05) Package added to pkgsrc.se, version py27-greenlet-0.4.9 (created)