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asynchrony

Python asyncio framework for writing safe and fast concurrent code.

Features:

  • Type annotated and type safe
  • Makes it easy to work with cancellation, errors, and scheduling.
  • Well tested and well documented.
  • Zero dependency.
  • Based on real world experience and pain.

Installation and usage

python3 -m pip install asynchrony

A simple example of starting concurrent tasks for all URLs (maximum 100 tasks at the same time) and waiting for all of them to finish:

from asynchrony import Tasks

async def download_page(url: str) -> bytes:
    ...

urls = [...]
tasks = Tasks[bytes](timeout=10, max_concurrency=100)
tasks.map(urls, download_page)

try:
    pages = await tasks
except Exception:
    failed = sum(t.failed for t in tasks)
    print(f'{failed} tasks failed')
    cancelled = sum(t.cancelled for t in tasks)
    print(f'{cancelled} tasks cancelled')
else:
    print(f'finished {len(tasks)} tasks')

See tutorial for runnable usage examples.

Release files for asynchrony 0.2.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for asynchrony 0.2.0
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Built distribution (wheel)

Table of built distributions (wheels) for asynchrony 0.2.0
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asynchrony-0.2.0-py3-none-any.whl Python 3 none any Details

Total release size: 20.6 kB

Release files / asynchrony-0.2.0.tar.gz

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Release files / asynchrony-0.2.0-py3-none-any.whl

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0.2.0 This release

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