aiohttp-sse-client
A Server-Sent Event python client base on aiohttp
Decision gist · record as of 2026-08-14
Yes, if you need async SSE consumption in an aiohttp-based project and can tolerate dormant maintenance. The package is stable, has no known vulnerabilities, and solves a specific problem well. Install it only if you are comfortable with a codebase that receives no active updates.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires an event loop (asyncio); the stream URL must be accessible and return valid Server-Sent Event format.
- Low install friction with a pure-Python wheel and four lightweight async dependencies.
- Maintenance is dormant—last release was 2021-02-27, over 1994 days ago, though the repository remains active with a recent commit on 2024-12-07.
License · maintenance · safety
Apache License 2.0 (permissive) — Licensed under Apache License 2.0 (permissive). You can use, modify, and distribute this package freely in commercial and private projects, with minimal restrictions.
last release 2021-02-27 (1994 days) · last repo commit 2024-12-07 · 48 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 160,026 downloads/mo, #10,679 on PyPI
Alternatives
Verify before relying
from aiohttp_sse_client import client as sse_client
import asyncio
async def main():
async with sse_client.EventSource('https://example.com/stream') as event_source:
async for event in event_source:
print(event)
asyncio.run(main())- Whether auto-reconnect behavior is configurable (retry count, backoff strategy, timeout limits).
- Support for HTTP methods beyond GET and custom authentication schemes.
- Compatibility with Python versions after 3.8 (classifiers only list up to 3.8).
What it is and what it does
aiohttp-sse-client is a lightweight async wrapper around aiohttp for consuming Server-Sent Events from HTTP endpoints. It provides a simple EventSource context manager that yields events as they arrive, with automatic reconnection on network failures. The package is built on aiohttp, attrs, multidict, and yarl, and exposes a straightforward async-for interface for iterating over incoming events.
It is designed for scenarios where you need to subscribe to real-time event streams—such as live data feeds, notifications, or monitoring dashboards—without blocking your async application. The dormant maintenance status (last release 2021-02-27) means the core feature set is stable but unlikely to receive new features or rapid bug fixes.
Use it for
- Subscribe to live Wikimedia event streams or other public SSE endpoints for real-time data ingestion.
- Build monitoring dashboards that consume server-pushed updates without polling.
- Integrate event streaming into an existing aiohttp-based web service or microservice.
- Process continuous data feeds in an async application with automatic reconnection.
- Handle reconnection logic automatically when consuming flaky or intermittent event sources.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need async SSE consumption in an aiohttp-based project and can tolerate dormant maintenance.
The package is stable, has no known vulnerabilities, and solves a specific problem well. Install it only if you are comfortable with a codebase that receives no active updates.
Install
aiohttp-sse-client on PyPI
Before you install
Low install friction with a pure-Python wheel and four lightweight async dependencies. Maintenance is dormant—last release was 2021-02-27, over 1994 days ago, though the repository remains active with a recent commit on 2024-12-07.
Requires an event loop (asyncio); the stream URL must be accessible and return valid Server-Sent Event format.
License in practice
Licensed under Apache License 2.0 (permissive). You can use, modify, and distribute this package freely in commercial and private projects, with minimal restrictions.
Quickstart
from aiohttp_sse_client import client as sse_client
import asyncio
async def main():
async with sse_client.EventSource('https://example.com/stream') as event_source:
async for event in event_source:
print(event)
asyncio.run(main())Verify before relying
- Whether auto-reconnect behavior is configurable (retry count, backoff strategy, timeout limits).
- Support for HTTP methods beyond GET and custom authentication schemes.
- Compatibility with Python versions after 3.8 (classifiers only list up to 3.8).
Package facts
| License | Apache License 2.0 permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 4 packagesaiohttpattrsmultidictyarl |
| Maintenance | Dormant 1,994 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 160,026 / month, #10,679 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 2 - Pre-AlphaIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseNatural Language :: EnglishProgramming Language :: Python :: 3Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8 |
Evidence: aiohttp_sse_client-0.2.1-py2.py3-none-any.whl
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See also aiohttp-sse · aiohttp-sse-client2 · launchdarkly-eventsource · omnigent-client · requests-sse · sse-starlette · sseclient-py · httpx-sse · filigran-sseclient · sseclient