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contextvars friendly ThreadPoolExecutor

Project description

info:contextvars friendly ThreadPoolExecutor
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Installation

pip install contextvars_executor

Usage

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!!!

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