使用pythoncan时的AttributeError（模块“can”没有属性“interface”）

Question

我在运行以下代码时出错：

import can #importing CAN module
import time

bus1 = can.interface.Bus(bustype='vector', channel=0, bitrate=500000,
                         app_name='python-can')
bus2 = can.interface.Bus(bustype='vector', channel=1, bitrate=500000,
                         app_name='python-can')

msg1 = can.Message(arbitration_id = 0xa1,
                   data = [1, 2, 3, 4, 5, 6, 7, 8],
                   extended_id = False)
msg2 = can.Message(arbitration_id = 0xa3,
                   data = [8, 7, 6, 5, 4, 3, 2, 1],
                   extended_id = False)
bus1.send(msg1)
time.sleep(1.0)
bus2.send(msg2)
bus1.shutdown()
bus2.shutdown()

我可以导入can模块，但出现以下错误：

AttributeError: module 'can' has no attribute 'interface'

我正在尝试向虚拟CAN发送虚拟消息。如何修复此错误

Answer 1

如果pyinstaller 4.0在.py打包为.exe后出现问题，请在代码中添加以下行

import can.interfaces.vector