Source code for

#!/usr/bin/env python
# coding: utf-8

This Listener simply prints to stdout / the terminal or a file.

from __future__ import print_function

import logging

from can.listener import Listener

log = logging.getLogger('')

[docs]class Printer(Listener): """ The Printer class is a subclass of :class:`~can.Listener` which simply prints any messages it receives to the terminal (stdout). :param output_file: An optional file to "print" to. """ def __init__(self, output_file=None): if output_file is not None:'Creating log file "{}"'.format(output_file)) output_file = open(output_file, 'wt') self.output_file = output_file def on_message_received(self, msg): if self.output_file is not None: self.output_file.write(str(msg) + '\n') else: print(msg)
[docs] def stop(self): if self.output_file: self.output_file.write('\n') self.output_file.close()