PySocketCAN

The pysocketcan module provides a class to quickly modify Linux SocketCAN parameters directly from Python.

For example, to change the baudrate in Linux you need to run

$ sudo ip link set can0 down
$ sudo ip link set can0 type can bitrate 250000
$ sudo ip link set can0 up

The pysocketcan equivalent is

>>> can0.baud = 250000

Installation

Use pip to install

$ pip install pysocketcan

Usage

import pysocketcan as pysc

>>> pysc.view_available() # returns available interfaces
'can0'
>>> can0 = pysc.Interface("can0") # instantiate interface object

>>> can0.on() # set interface up
>>> can0.off() # set interface down
>>> can0.state # returns current state of interface
'STOPPED'

>>> can0.baud = 250000 # sets the baudrate
>>> can0.baud # returns current baudrate
'250000'

>>> can0.status # returns currently active modes
'LOOPBACK,LISTEN-ONLY,TRIPLE-SAMPLING'
>>> can0.listen_only = False # turns mode off
>>> can0.status
'LOOPBACK,TRIPLE-SAMPLING'

If can-utils is installed you can also use

>>> can0.receive() # returns bus message
>>> can0.send(100, 12345678) # adds message to bus

Note:

To function correctly Python needs root priveleges

$ sudo python3
     # or
$ sudo venv/bin/python3

Contributing

Pull requests are welcome! For major changes, please open an issue first to discuss what you would like to change.