greenlet 0.1

Lightweight in-process concurrent programming

(This is the py.magic.greenlet module from the py lib <http://codespeak.net/py/>)

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 test_generator.py.

Greenlets are provided as a C extension module for the regular unmodified interpreter.

• Author: Bob Ippolito <bob at redivi com>
• Home Page: http://undefined.org/python/#greenlet
• Download URL: http://svn.red-bean.com/bob/greenlet/trunk/#egg=greenlet-dev
• License: MIT License
• Platform: any
• Categories
  • Intended Audience :: Developers
  • License :: OSI Approved :: MIT License
  • Natural Language :: English
  • Operating System :: OS Independent
  • Programming Language :: Python
  • Topic :: Software Development :: Libraries :: Python Modules
• Package Index Owner: fzzzy, bob, ghazel
• DOAP record: greenlet-0.1.xml