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.
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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