pynput stop key echo in bash

Optional descriptions

1. optionally block propagation of keyboard events
2. python block key events
3. python listen to keyboards and stop the event message

Code talk first

set suppress=True will swallow. ALL keypresses

#!/usr/bin/env python3
from pynput.keyboard import Key, Listener

def on_press(key):
    print('{0} pressed'.format(
        key))
    if key == Key.esc:
        # Stop listener
        return False

# Collect events until released
with Listener(
        on_press=on_press, suppress=True) as listener:
    listener.join()

Issue

When use pynput to capture keyboard input like this:

with Listener(
        on_press=on_press) as listener:
    listener.join()

the terminal will auto echo the key info, even special echo for up/down , such as:

$ python3 key_listener.py 
Key.up pressed
^[[AKey.right pressed
^[[CKey.left pressed
^[[DKey.down pressed
^[[BKey.right pressed
^[[CKey.left pressed
^[[DKey.up pressed
^[[A'a' pressed
a's' pressed

Now the world is slient and clean.

NOTE

but if you forget to exit the app, other apps will never get a valid key input forever.

You can also just read input from stdin,use get_char to do it