[Stackless] Announcement: stackless interface on top of CPython

[Stephan Diehl]

Hallo all,

out of the pypy python laboratories comes a pure Python implementation 
of Stackless Python. O.K., there is a bit of cheating involved as it 
needs greenlets installed :-)
If you have installed py.lib (see http://codespeak.net/py/dist ) and 
have http://codespeak.net/svn/pypy/dist/pypy/lib/stackless.py
somewhere in your python path, you can use most (some) of stackless 
features on top of CPython.
Due to the nature of greenlets, the most prominent omission is pickling.

Everything is still a bit rough around the edges, so this is considered 
for testing and playing around purposes only.

The tests for this can be found at
http://codespeak.net/svn/pypy/dist/pypy/lib/app_test/test_stackless.py
(the tests can be run with the original stackless as well)

I see two advantages in having such a stackless version:

1. a stackless newcomer might try stackless without installing a new
    python interpreter.
2. it's quite easy to play around with it, maybe trying some new
    interface, a different scheduler, etc.

Cheers

Stephan

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