Pre-installed Packages

These packages are available on the Barionet operating system out of the box. They are already present and can be imported or used directly.

Python 3 (v3.8.11) — Standard Library + Pre-installed Packages

Python apps can import any of these without installation:

Package	Version	Notes
`requests`	2.23.0	HTTP client
`urllib3`	1.25.7	Low-level HTTP
`paho-mqtt`	1.5.0	MQTT client (use instead of raw mosquitto)
`flask`	1.1.1	Lightweight web server / REST API
`gunicorn`	20.0.4	WSGI server for Flask
`werkzeug`	1.0.1	WSGI utilities (Flask dependency)
`zeroconf`	1.0	mDNS / service discovery
`ifaddr`	0.1.7	List network interfaces
`pysocks`	1.7.1	SOCKS proxy support
`ndg-httpsclient`	0.5.1	HTTPS via PyOpenSSL

Package	Version	Notes
`pymodbus`	3.6.7	Modbus TCP/RTU client & server
`pyserial`	3.4	Serial port (RS-232/RS-485)
`bacpypes`	0.18.8	BACnet protocol
`python-vlc`	3.0.7110	Audio/video playback via libVLC
`pyalsaaudio`	0.10.0	ALSA audio (direct sound card access)
`pjsua`	1.0	SIP/VoIP client via PJSIP (make/receive calls, audio)

Package	Version	Notes
`simplejson`	3.17.0	Fast JSON (use alongside stdlib `json`)
`jsonschema`	3.2.0	JSON schema validation
`jsonpointer`	2.0	JSON Pointer (RFC 6901)
`iso8601`	0.1.12	ISO 8601 date parsing
`m3u8`	3.6.0	M3U8 playlist parsing

Package	Version	Notes
`snmp-passpersist`	2.0.0	SNMP pass-persist subagent

Package	Version	Notes
`python3-uci`	0.6	Read/write UCI config files (OpenWrt)

Package	Version	Notes
`chardet`	3.0.4	Character encoding auto-detection (useful for serial/text data)
`idna`	2.8	Internationalized domain names
`webcolors`	1.8.1	CSS color name ↔ hex/RGB conversion
`strict-rfc3339`	0.7	Strict RFC 3339 date/time validation
`rfc3987`	1.3.8	URI/IRI validation per RFC 3987

Package	Version	Notes
`cffi`	1.14.0	Call C libraries from Python
`pycparser`	2.20	C source parser (cffi dependency)

Package	Version	Notes
`attrs`	19.3.0	Declarative Python classes
`pyrsistent`	0.15.7	Immutable/persistent data structures
`ply`	3.11	Lexer & parser toolkit (useful for custom protocol parsing)

Both Lua 5.3 and Lua 5.1 are available. The following libraries are pre-installed:

Available as shell commands or via subprocess:

Tool	Notes
`mosquitto`	MQTT broker (v1.6.10) — can run a local broker or use as client
`curl`	HTTP/HTTPS requests from shell
`jq`	JSON processing in shell scripts
`ffmpeg`	Audio/video transcoding (v4.2.2)
`icecast`	Audio streaming server (v2.4.4)
`mpg123`	MP3 playback
`avahi`	mDNS/DNS-SD daemon
`net-snmp`	SNMP agent
`ntp`	Time sync
`lighttpd`	HTTP server (v1.4.55)
`haserl`	CGI scripting for lighttpd (embed scripts in HTML)
`bash`	Full Bash 5.0 (not just busybox sh)
`openssl`	CLI for certs, hashing
`python3`	Python 3.8.11 interpreter
`lua`	Lua 5.3.6 interpreter
`lua5.1`	Lua 5.1.5 interpreter
`sqlite3`	Embedded SQL database
`screen`	Terminal multiplexer
`cronie`	Cron daemon — available for scheduled/recurring tasks
`netcat`	Raw TCP/UDP testing
`ethtool`	Network interface diagnostics
`minicom`	Serial terminal (debugging)
`i2c-tools`	I2C bus utilities (`i2cdetect`, `i2cget`, `i2cset`)
`dfu-util`	USB Device Firmware Upgrade utility
`openjre-8`	Java 8 runtime (v272)
`dropbear`	SSH server — present on device (users cannot SSH in by default)

Library	Notes
`libwebsockets` 4.0.1	WebSocket support
`libsrt` 1.0	Secure Reliable Transport
`librist` 1.0	RIST streaming protocol
`libsndfile` 1.0.28	Audio file I/O
`libsamplerate` 0.1.9	Audio resampling
`libgpiod` 1.4.3	GPIO line access
`libuv` 1.36.0	Async I/O event loop
`poco` 1.11.2	C++ networking/utility framework
`pjproject` 2.15.1	SIP/VoIP (PJSIP)

MQTT: Prefer paho-mqtt (Python) or lua-mosquitto (Lua) over shelling out to mosquitto_pub/sub.
Modbus: pymodbus 3.6.7 is available — no need to implement raw TCP framing.
Serial/RS-485: Use pyserial for serial comms.
Audio: pyalsaaudio for direct ALSA access; python-vlc for higher-level playback; ffmpeg via subprocess for transcoding.
Web API: flask + gunicorn can expose a REST API from within an app.
SQLite: sqlite3 is in both the Python stdlib and as a system binary — safe for local persistent storage.
I2C: Use python3-smbus for I2C bus access (in addition to i2c-tools CLI).
Scheduled tasks: cronie is available — use it for recurring jobs instead of implementing sleep loops where a cron schedule is more appropriate.
Java: openjre-8 is present if a task requires running a .jar file via subprocess.
CGI / lighttpd: haserl enables CGI scripts embedded in HTML served by lighttpd — an alternative to Flask for very lightweight web UIs.
No pip: There is no pip/package manager available to end users. Only the packages listed here are available.