Python-对自定义键盘中断做出反应

Question

I am writing python chatbot that displays output through console. Every half second it asks server for updates, and responds to message. In the console I can see chat log.

This is sufficient in most cases, however, sometimes I want to interrupt normal workflow and write custom chat answer myself. I would love to be able to press a button (or combination) that would switch to "custom reply mode". What is the best way to do that, or achieve similar result?

Thanks a lot!

Answer 1

在sys.stdin上使用select.select()将允许您检查是否在终端上按下了键。

Answer 2

Given the comments in the previous answer, you need a non-blocking function to tell whether any keys were pressed rather than something that triggers as soon as the key was pressed.

I would therefore recommend using some of the terminal APIs available on your OS. Typically this would be curses or the win32 console API. However, I have written a common wrapper to both in asciimatics . The get_event() method on the Screen should provide a simple cross-platform way of getting mouse and keyboard events. To see if it was a keyboard event, check the type of returned event. If there was no event, you'll get a return code of None , but if it was a key pressed, you'll get KeyboardEvent .