python-can/examples/receive_all.py at develop · feuerball/python-can · GitHub

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#!/usr/bin/env python

"""

Shows how to receive messages via polling.

"""

import can

from can.bus import BusState

def receive_all():

"""Receives all messages and prints them to the console until Ctrl+C is pressed."""

# this uses the default configuration (for example from environment variables, or a

# config file) see https://python-can.readthedocs.io/en/stable/configuration.html

with can.Bus() as bus:

# set to read-only, only supported on some interfaces

try:

bus.state = BusState.PASSIVE

except NotImplementedError:

pass

try:

while True:

msg = bus.recv(1)

if msg is not None:

print(msg)

except KeyboardInterrupt:

pass # exit normally

if __name__ == "__main__":

receive_all()

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