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Tyler Goodlet 2020-10-14 11:07:48 -04:00
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tractor tractor
======= =======
A `structured concurrent`_, async-native "`actor model`_" built on trio_ and multiprocessing_. The Python async-native multi-core system *you always wanted*.
|gh_actions| |gh_actions|
|docs| |docs|
@ -13,16 +14,22 @@ A `structured concurrent`_, async-native "`actor model`_" built on trio_ and mul
.. _structured concurrent: https://trio.discourse.group/t/concise-definition-of-structured-concurrency/228 .. _structured concurrent: https://trio.discourse.group/t/concise-definition-of-structured-concurrency/228
``tractor`` is an attempt to bring trionic_ `structured concurrency`_ to ``tractor`` is a `structured concurrent`_ "`actor model`_" built on trio_ and multiprocessing_.
distributed multi-core Python; it aims to be the Python multi-processing
framework *you always wanted*.
``tractor`` lets you spawn ``trio`` *"actors"*: processes which each run It is an attempt to pair trionic_ `structured concurrency`_ with
a ``trio`` scheduled task tree (also known as an `async sandwich`_). distributed Python. You can think of it as a ``trio`` *-across-processes*
*Actors* communicate by exchanging asynchronous messages_ and avoid or simply as a replacement for the stdlib's `multiprocessing` but built
sharing any state. This model allows for highly distributed software on async primitives for IPC.
architecture which works just as well on multiple cores as it does over
many hosts. ``tractor``'s nurseries lets you spawn ``trio`` *"actors"*: new Python
processes which each run a ``trio`` scheduled task tree (also known as
an `async sandwich`_). That is, each "*Actor*" is a new process plus
a `trio` runtime.
Processes communicate by exchanging asynchronous messages_ and avoid
sharing state. The intention of this model is to allow for highly
distributed software that, through the adherence to *structured
concurrency*, results in systems which fail in predicatable ways.
The first step to grok ``tractor`` is to get the basics of ``trio`` down. The first step to grok ``tractor`` is to get the basics of ``trio`` down.
A great place to start is the `trio docs`_ and this `blog post`_. A great place to start is the `trio docs`_ and this `blog post`_.
@ -45,17 +52,28 @@ No PyPi release yet!
pip install git+git://github.com/goodboy/tractor.git pip install git+git://github.com/goodboy/tractor.git
Alluring Features
-----------------
- Infinitely nesteable process trees
- A built-in API for inter-process streaming
- A (first ever?) "native" multi-core debugger for Python using `pdb++`_
- (Soon to land) `asyncio` support allowing for "infected" actors where
`trio` drives the `asyncio` scheduler via the astounding "`guest mode`_"
Feel like saying hi? Feel like saying hi?
-------------------- --------------------
This project is very much coupled to the ongoing development of This project is very much coupled to the ongoing development of
``trio`` (i.e. ``tractor`` gets most of its ideas from that brilliant ``trio`` (i.e. ``tractor`` gets most of its ideas from that brilliant
community). If you want to help, have suggestions or just want to community). If you want to help, have suggestions or just want to
say hi, please feel free to reach us on in our `matrix channel`_. If say hi, please feel free to reach us in our `matrix channel`_. If
matrix seems too hip, we're also mostly all in the the `trio gitter matrix seems too hip, we're also mostly all in the the `trio gitter
channel`_! channel`_!
.. _trio gitter channel: https://gitter.im/python-trio/general .. _trio gitter channel: https://gitter.im/python-trio/general
.. _matrix channel: https://matrix.to/#/!tractor:matrix.org .. _matrix channel: https://matrix.to/#/!tractor:matrix.org
.. _pdb++: https://github.com/pdbpp/pdbpp
.. _guest mode: https://trio.readthedocs.io/en/stable/reference-lowlevel.html?highlight=guest%20mode#using-guest-mode-to-run-trio-on-top-of-other-event-loops
.. |gh_actions| image:: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fgoodboy%2Ftractor%2Fbadge&style=popout-square .. |gh_actions| image:: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fgoodboy%2Ftractor%2Fbadge&style=popout-square