NotImplementedError: Invalid CAN Bus Type

连接can
can0 = can.interface.Bus(channel = ‘can0’, bustyp = ‘socketcan_ctypes’)

在python中连接can是会出现下列错误：
Traceback (most recent call last):
File “recv.py”, line 10, in
can1 = can.interface.Bus(channel = ‘can1’, bustyp = ‘socketcan_ctypes’)
File “/usr/local/lib/python3.7/dist-packages/can/interface.py”, line 108, in new
kwargs = load_config(config=kwargs, context=context)
File “/usr/local/lib/python3.7/dist-packages/can/util.py”, line 197, in load_config
raise NotImplementedError(‘Invalid CAN Bus Type - {}’.format(config[‘interface’]))
NotImplementedError: Invalid CAN Bus Type - None

解决方法：
在~/下添加 .canrc文件，
sudo vi ~/.canrc
里面填写如下信息
[default]
interface = socketcan
channel = can0

问题即可解决

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