将python2字节/字符串编码转换为python3

I'm communicating over a serial port, and currently using python2 code which I want to convert to python3. I want to make sure the bytes I send over the wire are the same, but I'm having trouble verifying that that's the case.

我正在通过一个串行端口进行通信，目前使用的是要转换为python3的python2代码。我想确保我通过电线发送的字节是相同的，但是我在验证这一点上有困难。

In the original code the commands are sent like this:

在原始代码中，命令是这样发送的:

serial.Serial().write("\xaa\xb4" + chr(2))

If I print "\xaa\xb4" in python2 I get this: ��.
If I print("\xaa\xb4") in python3 I get this: ª´

如果我打印“\ xaa \ xb4”python2我得到这个:��。如果我打印(“\ xaa \ xb4”)python3我得到这个:ª´

Encoding and decoding seem opposite too:

编码和解码似乎也相反:

Python2: print "\xaa".decode('latin-1') -> ª
Python3: print("\xaa".encode('latin-1')) -> b'\xaa'

Python2:打印" \ xaa " .decode(latin - 1)- >ªPython3:打印(" \ xaa " .encode(latin - 1))- > b \ xaa”

To be crude, what do I need to send in serial.write() in python3 to make sure exactly the same sequence of 1s and 0s are sent down the wire?

为了更简单，我需要用python编写的write()来确保相同序列的1和0被发送到电线上?

1 个解决方案

#1

Use a bytes sequence.

使用一个字节序列。

ser.write(b'\xaa\xb4')