juicessh.py

#!/usr/bin/python3
import tty
import termios
import sys
import subprocess

def getchar():
   #Returns a single character from standard input
   fd = sys.stdin.fileno()
   old_settings = termios.tcgetattr(fd)
   try:
      tty.setraw(sys.stdin.fileno())
      ch = sys.stdin.read(1)
   finally:
      termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
   return ch

print("UNLOCK <=== SWIPE ===> LOCK")
while 1:
    c = getchar()
    if c == "\x01":
        ctrla = True
    elif ctrla and c == "p":
        subprocess.check_call("loginctl unlock-session 1", shell=True)
        ctrla = False
    elif ctrla and c == "n":
        subprocess.check_call("loginctl lock-session 1", shell=True)
        ctrla = False
    elif ctrla and c == "q":
        sys.exit()
    else:
        ctrla = False