https://github.com/hellysmile/contextvars_executor

contextvars friendly ThreadPoolExecutor
https://github.com/hellysmile/contextvars_executor

asyncio contextvars

Last synced: 29 days ago
JSON representation

contextvars friendly ThreadPoolExecutor

• Host: GitHub
• URL: https://github.com/hellysmile/contextvars_executor
• Owner: hellysmile
• Created: 2018-09-21T23:18:14.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-10-30T02:54:20.000Z (2 months ago)
• Last Synced: 2024-12-01T02:35:19.464Z (about 1 month ago)
• Topics: asyncio, contextvars
• Language: Python
• Homepage: https://pypi.org/project/contextvars-executor/
• Size: 25.4 KB
• Stars: 15
• Watchers: 3
• Forks: 1
• Open Issues: 10
• Metadata Files:
  • Readme: README.rst

Awesome Lists containing this project

README

        
contextvars_executor

====================

:info: contextvars friendly ThreadPoolExecutor

.. image:: https://travis-ci.org/hellysmile/contextvars_executor.svg?branch=master

    :target: https://travis-ci.org/hellysmile/contextvars_executor

.. image:: https://img.shields.io/pypi/v/contextvars_executor.svg

    :target: https://pypi.python.org/pypi/contextvars_executor

.. image:: https://codecov.io/gh/hellysmile/contextvars_executor/branch/master/graph/badge.svg

    :target: https://codecov.io/gh/hellysmile/contextvars_executor

Installation

------------

.. code-block:: shell

    pip install contextvars_executor

Why???

------

* `related Python issue `_

Usage

-----

.. code-block:: python

    import asyncio

    import contextvars

    from contextvars_executor import ContextVarExecutor

    ctx = contextvars.ContextVar('42')

    def thread():

        ret = ctx.get()

        assert ret == 42

        return ret

    async def main(*, loop):

        ctx.set(42)

        ret = await loop.run_in_executor(None, thread)

        assert ret == 42

    loop = asyncio.get_event_loop()

    loop.set_default_executor(ContextVarExecutor())

    loop.run_until_complete(main(loop=loop))

Python 3.7+ is required, there is no need to support older python versions!!!