Python AttributeError:“模块"对象没有属性“序列"

2022-01-18 00:00:00 python raspberry-pi serial-port

问题描述

我正在尝试在运行 Debian 的 Raspberry Pi 上使用 Python 2.6 访问串行端口.我的脚本名为 serial.py 尝试导入 pySerial:

I'm trying to access a serial port with Python 2.6 on my Raspberry Pi running Debian. My script named serial.py tries to import pySerial:

import serial ser = serial.Serial('/dev/ttyAMA0', 9600) ser.write("hello world!")

由于某种原因，它拒绝建立串行连接并出现此错误:

For some reason it refuses to establish the serial connection with this error:

AttributeError: 'module' object has no attribute 'Serial'

当我尝试在交互式 Python 解释器中键入相同的代码时，它仍然不起作用.

When I try to type the same code in the interactive Python interpreter it still doesn't work.

奇怪的是，它曾经在大约几个小时前起作用.

Strangely, it used to work about a couple hours ago.

可能是什么问题?我已经尝试修复了一段时间，再次安装 pySerial，重写我的代码，仔细检查串口等.

What could be the problem? I've tried to fix this for a while, installing pySerial again, rewriting my code, double-checking the serial port, etc.

解决方案

你导入的是模块，而不是类.所以，你必须写:

You're importing the module, not the class. So, you must write:

from serial import Serial

需要正确安装serial模块:pip install pyserial.

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