simpervisor
Simple async process supervisor
Decision gist · record as of 2026-08-14
Yes. Low install friction, no dependencies, active maintenance, and a permissive license make this a safe choice for any async Python project that needs to spawn and manage child processes. The narrow scope and stable API reduce risk; use it if you need async process lifecycle control.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.8 or later; async/await syntax required in calling code.
- Low friction installation with no runtime dependencies.
- Actively maintained as of August 2026, with consistent Python version support across 3.8–3.11 and PyPy.
License · maintenance · safety
permissive license (permissive) — BSD 3-Clause License permits commercial and private use with minimal restrictions; you must retain copyright notices and disclaimers in source and binary distributions.
last release 2023-05-18 (1184 days) · last repo commit 2026-08-03 · 14 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 643,642 downloads/mo, #5,605 on PyPI
Alternatives
Verify before relying
pip install simpervisor
import asyncio
from simpervisor import SupervisedProcess
async def main():
proc = SupervisedProcess("sleep", "10")
await proc.start()
await proc.terminate()
asyncio.run(main())- Whether SupervisedProcess supports stdin/stdout/stderr capture or streaming.
- Whether the package handles process groups or only individual processes.
- What happens to child processes if the parent asyncio event loop exits unexpectedly.
What it is and what it does
simpervisor wraps subprocess management into an async-friendly API, offering a SupervisedProcess class with async methods for the full lifecycle of a child process: start, ready, terminate, and kill. It is designed for applications that need to spawn and manage external processes from within async code without blocking the event loop.
The package has no runtime dependencies and works with Python 3.8 through 3.11 on both CPython and PyPy. It is actively maintained and used by JupyterHub's jupyter-server-proxy to manage proxy processes. The low install friction and permissive BSD license make it straightforward to integrate into projects that need lightweight async process supervision.
Use it for
- Start and manage proxy or gateway processes from within a JupyterHub-like async application.
- Supervise background worker processes in an async web service without blocking the event loop.
- Implement graceful shutdown of child processes in an async application by calling terminate or kill.
- Coordinate multiple managed subprocesses in a microservice or orchestration context.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Low install friction, no dependencies, active maintenance, and a permissive license make this a safe choice for any async Python project that needs to spawn and manage child processes. The narrow scope and stable API reduce risk; use it if you need async process lifecycle control.
Install
simpervisor on PyPI
Before you install
Low friction installation with no runtime dependencies. Actively maintained as of August 2026, with consistent Python version support across 3.8–3.11 and PyPy.
Requires Python 3.8 or later; async/await syntax required in calling code.
License in practice
BSD 3-Clause License permits commercial and private use with minimal restrictions; you must retain copyright notices and disclaimers in source and binary distributions.
Quickstart
pip install simpervisor
import asyncio
from simpervisor import SupervisedProcess
async def main():
proc = SupervisedProcess("sleep", "10")
await proc.start()
await proc.terminate()
asyncio.run(main())Verify before relying
- Whether SupervisedProcess supports stdin/stdout/stderr capture or streaming.
- Whether the package handles process groups or only individual processes.
- What happens to child processes if the parent asyncio event loop exits unexpectedly.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 1,184 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 643,642 / month, #5,605 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableProgramming Language :: PythonProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPy |
Evidence: simpervisor-1.0.0-py3-none-any.whl
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See also mirakuru · supervisor · supervisord-dependent-startup · jupyter-server-proxy · kantoku · circus · jupyterhub · EasyProcess · superlance · kthread