kantoku

Circus is a program that will let you run and watch multiple processes and sockets.

kantoku v0.18.3 142.8K downloads/30d#11,200 on PyPI★ 1

Permissive license AGING released 2025-03-11

What it is and what it does

Kantoku is a process and socket manager that lets you run, monitor, and control multiple processes simultaneously. It can be used as a Python library or invoked from the command line, making it suitable for both programmatic and operational workflows. The package depends on psutil for system monitoring, pyzmq for inter-process communication, and tornado for async I/O.

The package is marked Production/Stable and supports Python 3.7 through 3.13 across Linux, macOS, and Windows. The repository remains active and is not archived, though it carries an aging maintenance status.

Use it for:

Supervise and restart multiple worker processes in a long-running application
Monitor system resource usage of managed processes via psutil integration
Coordinate inter-process communication through ZeroMQ socket management
Run batch jobs or background tasks with centralized lifecycle control

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Kantoku runs and watches multiple processes and sockets, providing process lifecycle management and monitoring through a library or command-line interface.

Yes, with conditions. Kantoku is low-friction to install and permissively licensed. It is suitable if you need straightforward process supervision and monitoring. However, the aging maintenance status warrants checking whether the project meets your long-term support expectations before adopting it for new critical systems.

Install

kantoku on PyPI

pip

pip install kantoku

uv

uv add kantoku

poetry

poetry add kantoku

Installing kantoku

Before you install

Low install friction with pure-Python dependencies (psutil, pyzmq, tornado). The package is in aging maintenance status with the repository remaining active and the codebase marked Production/Stable.

License in practice

Licensed under Apache Software License (permissive), allowing commercial and private use with minimal restrictions.

Quickstart

pip install kantoku

import kantoku
# Use kantoku to manage and monitor processes

Verify before relying

Whether kantoku is actively maintained or in maintenance-only mode despite aging status
Specific process management capabilities and API surface compared to alternatives
Real-world deployment patterns and typical use cases in production environments
Why the last release was 521 days ago and what that means for stability

Package facts

License	not declared (permissive)
Python support	supports the current Python release (>=3.7)
Install friction	low — pure-Python wheel
Runtime dependencies	3 — psutil, pyzmq, tornado
Maintenance	aging — 521 days since the last release
Last repo commit	2025-08-28
First released	2024-12-26
Downloads	142,804/month — #11,200 on PyPI (30-day window, as of 2026-08-14)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-14)

Evidence: kantoku-0.18.3-py3-none-any.whl

Development Status :: 5 - Production/StableLicense :: OSI Approved :: Apache Software LicenseOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: POSIX :: LinuxProgramming Language :: PythonProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9