在python中处理终端颜色代码（ANSI颜色转义代码）

Question

I was supposed to write a PyQt application which can communicate with serial devices over UART. I connected it to an OpenWRT based router and when I tried to run 'ls' on it, the output ( see attached screenshot ) had some weird letters around the name of the folders. I understand that these are Color codes of some sort. How do I remove these from the output or display the colour accordingly. Any help would help.

Answer 1

See the man page for ls (1), and the output of the command

$  command -v ls

On my Linux system, that reports

$ command -v ls
alias ls='ls --color=auto'

It's a fact of life that a Unix interactive shell cannot reliably determine the characteristics of the attached terminal, and a regrettable fact that GNU colorization is indifferent to the terminal. When connecting with a device that doesn't want color, the best plan is just to turn it off wherever it crops up.

To test that, one quick trick is to type "ls" this way:

$ \ls

The introductory backslash defeats the shell's alias mechanism, and reverts to using bare /usr/bin/ls , or whatever your PATH supplies.