bacpypes3
BACnet Communications Library
Decision gist · record as of 2026-08-14
Yes, if you are building BACnet applications in Python and can tolerate Pre-Alpha stability. The library has no dependencies, installs easily, and is actively maintained. However, validate thoroughly in your specific BACnet environment before relying on it in production, as the Pre-Alpha status signals that breaking changes and edge cases remain possible.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.8 or later; BACnet communication requires appropriate network interface and BACnet device configuration.
- Low friction install with no runtime dependencies.
- Active maintenance as of July 2026, though marked Pre-Alpha status indicates the API and behavior may still shift between releases.
License · maintenance · safety
MIT (permissive) — MIT license permits commercial and private use with minimal restrictions, requiring only attribution and inclusion of the license text.
last release 2026-03-17 (150 days) · last repo commit 2026-07-13 · 95 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 137,420 downloads/mo, #11,367 on PyPI
Alternatives
Verify before relying
pip install bacpypes3
import asyncio
from bacpypes3.app import Application
async def main():
app = Application()
await app.run()
asyncio.run(main())- Whether the Pre-Alpha status reflects incomplete feature coverage or ongoing API stabilization.
- Real-world performance and reliability in production building automation deployments.
- Compatibility with specific BACnet device types and vendors beyond basic protocol support.
What it is and what it does
BACpypes3 is a complete rewrite of the original BACpypes library, modernized for Python 3.8+ using async/await and asyncio. It implements the BACnet protocol stack—both application and network layers—allowing you to build daemons, scripts, and graphical interfaces that communicate with BACnet devices on building automation networks.
The library is actively maintained and supports Python versions from 3.8 through 3.14. With no external runtime dependencies, it installs cleanly and runs on any compatible Python environment. However, it is marked Pre-Alpha, meaning the API may change and edge cases may not be fully handled; it is suitable for development and testing but carries risk in production deployments without thorough validation.
Use it for
- Build a BACnet client daemon to monitor and control HVAC systems, lighting, or other building automation devices.
- Write scripts to query BACnet device properties, read sensor values, or send commands to building equipment.
- Develop a graphical interface or web service that exposes BACnet device data to operators or building management systems.
- Simulate BACnet devices for testing and integration work without requiring physical hardware.
- Integrate building automation data into Python-based analytics or home automation platforms.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building BACnet applications in Python and can tolerate Pre-Alpha stability.
The library has no dependencies, installs easily, and is actively maintained. However, validate thoroughly in your specific BACnet environment before relying on it in production, as the Pre-Alpha status signals that breaking changes and edge cases remain possible.
Install
bacpypes3 on PyPI
Before you install
Low friction install with no runtime dependencies. Active maintenance as of July 2026, though marked Pre-Alpha status indicates the API and behavior may still shift between releases.
Requires Python 3.8 or later; BACnet communication requires appropriate network interface and BACnet device configuration.
License in practice
MIT license permits commercial and private use with minimal restrictions, requiring only attribution and inclusion of the license text.
Quickstart
pip install bacpypes3
import asyncio
from bacpypes3.app import Application
async def main():
app = Application()
await app.run()
asyncio.run(main())Verify before relying
- Whether the Pre-Alpha status reflects incomplete feature coverage or ongoing API stabilization.
- Real-world performance and reliability in production building automation deployments.
- Compatibility with specific BACnet device types and vendors beyond basic protocol support.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 150 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 137,420 / month, #11,367 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 :: BSD LicenseNatural Language :: EnglishProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: bacpypes3-0.0.106-py3-none-any.whl
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See also BAC0 · bacpypes · jeedomdaemon · async-modbus · pymodbus · websockets · daemonize · pmd-pytcp · pyserial-asyncio · ldap3